100 envelopes cost $0.70 how much would it be for 250

The yard behind cindy house is rectangular in shape and has a perimeter of 72 feet. if the length of the yard is 18 feet longer than the width of the yard, what if the area of the yard, in square feet

You make $32,000.00. Using the 20% to 25% range, calculate the least and greatest amount you should spend on housing.

Addilyn's bedroom has a perimeter of 40 inches; the width is 8 feet. What is the length of her room? If Addilyn wants to put a wallpaper border around her bedroom four times, what length of wallpaper border should she buy?

A 10 foot tree casts a 4.5 foot shadow. At the same time, what size shadow would a 25 foot flagpole cast?

Solve the equation by multiplying by a power of 10. 3.1x - 10 = 1.6x + 35

You roll a fair six-sided die twice. Find the probability of rolling a 4 the first time and a number greater than 3 the second time

Jamie has 6qauters and some dimes in his pocket. The total value of the coins is 4.50 How many dime dose he have in his pocket

Describe two ways to reduce bias in an expirement

Carla has 9 cans of paint. It takes 1/2 can of paint to paint a chair. How many chairs can she paint with her 9 cans of paint?

7x + 3x + 5 - 2x + 7. Select all that are equivalent. a. 2x + 6 b. 10X + 12 - 2x c. 12x + 12 d. 8x + 12