Tariq has earned $54 for cutting the grass of three houses. Part A: If he continues to earn money at this rate, how much will he make after cutting all 11 lawns on his street?

Part B: How many lawns would he need to cut if he wanted to earn enough money to buy an Xbox One that costs $324?

Part A: $198

Part B: 18 lawns

Step-by-step explanation:

Part A:

Find out how much he earns for cutting the grass of one house.

3 houses = 54

1 house = 54 ÷ 3 = 18

11 houses = 18 x 11 = 198

(Final answer)

Part B:

Since you know how much you earn for cutting the grass of one house, take the amount of money needed divided by how much you earn for cutting grass per house.

324 ÷ 18 = 18

(Final answer)

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d