Ihave class in 5 min 1 which expression is equivalent to 12a + 8? (5 points)

4(3a + 2)

4(3a + 8)

6(6a + 2)

6(6a + 8)

2.

(03.01 lc)

a theater company charges $7.50 per ticket for people of all age groups. if c represents the total number of children who bought tickets and a represents the total number of adults who bought tickets, which expression best represents the total money earned by the company from the sale of tickets? (5 points)

7.5c + a

c + 7.5a

15(c + a)

7.5(c + a)

3.

(03.01 lc)

wendy and mini earn $49 per week for delivering magazines. wendy worked for x weeks and earned an additional total bonus of $18. mini worked for y weeks. which expression shows the total money, in dollars, that wendy and mini earned for delivering magazines? (5 points)

67x + 49y

49x − 18 + 49y

49x + 18 + 49y

49x + 67y

4.

(03.02 mc)

cathy did a survey in four bird parks and wrote the following observations:

bird park survey

park number of green birds total number of birds

p 18 82

q 39 88

r 38 64

s 22 50

based on the survey, which park had the greatest percentage of green birds? (5 points)

park p

park q

park r

park s

5.

(03.02 mc)

nadia surveyed 80 students at her school and found that 0.55 of the students she surveyed said their favorite class is math. another 15% of the students she surveyed reported that their favorite class is science. how many more students in the survey prefer math over science? (5 points)

12

32

44

48

6.

(03.02 mc)

bella, lydia, camila, and trinity together stacked a total of 60 pizzas in a pan. bella stacked 0.25 of the pizzas, lydia stacked 12 of the 60 pizzas, camila stacked 35% of the pizzas, and trinity stacked the remaining pizzas. who stacked the most pizzas? (5 points)

bella

lydia

camila

trinity

7.

(03.04 mc)

solve for x: (5 points)

negative 3 over 2, multiplied by x minus 9 equals negative 27

−24

−12

11

12

8.

(03.04 mc)

kylie has $70 to spend on clothes. she wants to buy a pair of jeans for $30 and spend the rest on t-shirts. each t-shirt costs $8. which inequality represents the number of t-shirts she can purchase? (5 points)

x ≥ 5

x ≤ 5

x ≤ 11

x ≥ 11

9.

(03.04 lc)

the sum of two numbers is 47. the greater number is 9 more than the smaller number. which equation can be used to solve for the smaller number? (5 points)

x + (x + 9) = 47

x − (x + 9) = 47

x(x + 9) = 47

x(x − 9) = 47

10.

(03.05 mc)

olivia needs $36 to buy a coat. she has saved $8 and plans to work as a babysitter to earn $7 per hour. which inequality shows the minimum number of hours, n, that olivia should work as a babysitter to earn enough to buy the coat? (5 points)

8 + 7n ≤ 36, so n ≤ 4

8 + 7n ≥ 36, so n ≥ 4

7n ≥ 36 + 8, so n ≥ 6.3

7n ≤ 36 + 8, so n ≤ 6.3

11.

(03.05 mc)

natalie works in a toy shop and earns $43 per day. she earns an extra $3 for each toy she sells. if natalie wants to earn at least $70 per day, which inequality shows the minimum number of toys, n, that she should sell? (5 points)

43 + 3n ≥ 70, so n ≥ 9

43 + 3n ≤ 70, so n ≤ 9

43 + 3n ≥ 70, so n ≥ 24

43 + 3n ≤ 70, so n ≤ 24

12.

(03.05 mc)

chad wants to buy some books over the internet. each book costs $10.01 and has a shipping cost of $9.96 per order. if chad wants to spend no more than $50 for his books, which inequality shows the maximum number of books, p, that he can buy? (5 points)

9.96p − 10.01p ≤ 50, so p ≤ 1

9.96p + 10.01p ≤ 50, so p ≤ 2

9.96 − 10.01p ≤ 50, so p ≤ 3

9.96 + 10.01p ≤ 50, so p ≤ 4