Which of the following changes represents a percent decrease?

a) 10 gallons to 24 gallons

b) 24 songs to 78 songs

c) 72 paper clips to 63 paper clips

d) 12 inches to 36 inches

What percent of 80 is 50? Show your work.

What is the width of the rectangle shown? 4x + 3 A = 8x2 - 10x - 12 O A. 44 - 4 O 2x - 15 O o O c. 2x - 4 O D. 4X - 15

In the number 772 the 7 in the tens place is what the value of the 6 in the ones place.

Katriana and Andrew started the day with the same amount of money. Katriana spent $5 on lunch. Andrew spent $3 on lunch and $2 on a snack after school. Do Katriana and Andrew have the same amount of money left?

Write an expression for 7 less than 3 times a number

Oliver is determining the number of cats in his math class. Oliver is collecting what kind of data?

If Marianne's father calls and says he needs 13 pounds of potting soil how many additional bags should she buy

The sum of the speeds of two trains is 719.9 miles per hour. If the speed of the first train is 8.1 mph faster than that of the second train, find the speeds of each.

If 4 - (2x - 3) = 3, what is the value of x

A box contains ten cards labeled J, k, L, M, N, O, P, Q, R, and S. One add will be randomly chosen. What is the probability of choosing a letter from N and Q? Write your answer as a fraction in simplest form.