Solve for x.

28/21 = 42/x

A. 14

B. 18 2/3

C. 31 1/2

D. 56

Which is an expression to find the speed in m/s? d = 100 m, t = 20 s A. 100 - 20 B. 100 + 20 C. 100/20 D. 100 x 20

Ben is greeting customers at a music store of the first 20 people he sees into the store 13 oh and jackets and seven or not what is experimental probability that the next person to enter the store will be wearing a jacket?

78 is 15%, percent of what number?

Cristobal takes 3 hours to wash 5 cars. At this rate, how many cars could he wash in 45 hours

What is 1/3 Times 12

It takes April 7 1/3 hours to drive to her grandparents' house. So far she has driven 3 5/6 hours. How many more hours does April need to drive?

A tree that is 6 ft tall casts a shadow that is 18 ft long. Find the height of a globe that casts a 6 ft shadow. 'Answer each question and round your answer to the nearest whole number.'

Approximate The square root of 12 to the nearest tenth. Explain how you got your answer.

Four times a number decreased by 8 equals 92

The weight of a car is modeled with the polynomial x2 + 10x + 200. The weight of a x3 + x + 100. Which polynomial represents the total weight of the car and truck?