1. A classroom has a perimeter of 110 feet. The width is 30 feet. What is the length? 2.When you make a retail purchase in Arlington, Virginia, you pay sales tax. The formula for determining your total cost is given by:

`T=p+0.06p` where `T` is the total and `p` is the price of each item you are purchasing.

Find the total when you purchase the new iPad for $499.

(Type your answer as a number up to 2 decimal places.)
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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:

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25