Which phrase describes an unknown or changeable quantity

A soccer ball kicked from the ground with an initial velocity of 32 ft/s is given by the function h (t) = - 16 + 321. When is the soccer ball moving through the air?

The table shows the fraction of a book karen read saturday and sunday. What fraction of her book did she read on these two days?

Factor completely x^2 (5x-14)

The product of two integers is 889. If one integer is - 31, what is the other?

Solve using the draw-a-figure strategy. A snail is at the bottom of a 10 ft wall. Each day it climbs up 3 ft. Each night it slides back down 1 ft. On which day will it reach the top of the wall? A: Day 3 B: Day 4 C: Day 5 D: Day 6

A dog weighs 2 pounds more than a cat. 3 cats and 4 dogs together weigh 43 pounds. How much does a dog weigh? How much does a cat weigh?

Is y equals x to the third power + x equals - 3 then what does y equal

What is f and x in f (x) = 7

18 * 5 * 10 * 9 * 7

Home Depot wants to buy a new line of fertilizers. Manufacturer A offers a 21/13 chain discount. Manufacturer B offers a 26/8 chain discount. Both manufacturers have the same list price. What manufacturer should Home Depot buy from, show why?