70 is 80% of what number

A driveway is shaped like a parallelogram with a base of 28 ft and a height of 17 ft. covering the driveway with crushed stone will cost 2.75 per square root. how much will it cost to cover the driveway with crushed stone?

Find the sum of 997 + 992 + 987 + ... + 257 + 252

The surf instructor has an initial fee of $12 and charges $8 per hour for lessons, which is represented by the equation y = 8x + 12, where x is the number of hours and y is the total cost.

A survey of 250 adults found that during the last year, 70 traveled by plane but not by train, 70 traveled by train but not by plane, 20 traveled by bus but not by plane or by train, 45 traveled by bus and plane, 20 traveled by all three, and 185

In a game, if you roll a 6 on a 6-sided number cube, you lose a turn. (A) What is the probability you roll a 6? Explain you reasoning. (B) What is the probability that you roll a 6 or do not roll a 6? Explain you reasoning.

Terrance is loading two different size boxes onto an elevator, which has a wieght limit. The small boxes weigh 5 kg each and the large boxes weigh 8 kg each.

What is the answer to the question 5x+2x

Kamal has big feet. Kamal's mom says she wouldn't be surprised if he grew to be 7 feet tall! Kamal's new shoes came in a box that measures 16 inches by 9 inches by 6 inches. What is the volume of the shoebox?

Five times the sum of the digits of a two-digit number is 13 less than the original number. If you reverse the digits in the two-digit number, four times the sum of its two digits is 21 less than the reversed two-digit number.

Divide give the quotient and remainder 295 dived by 3