1. what was it 4 hr 30 min before 9:50 am?
2. Tennis instruction at camp Cherokee is for 45 minutes a day 4 days a week. how many hour a week is this?
3. A plane flies from phoenix to Memphis in 3 hours and 20 minutes. it left phoenix at 2:50 pm mountain time. At what time did it arrive in Memphis (central time)?

Which estimate is better for each?
1. Height of a flag pole: 2. Mass of a thumbtack:
12 m or 100 cm 1 g or 20 mg

3. Bottle of milk: 4. cool day:
100 mL or 2 L 70° c or 2° c

complete

1. 1,000 mL= L
2. 1,750 m= km
3. 5.2 g= mg
4. 6.1 L= mL
5. 1 mm= m
6. 4.6 m= m
7. 2 t= kg
8. 3 d= h

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.