y and x have a proportional relationship, and y = 28 when x = 21. What is the value of x when y = 42? A. 14 B. 18 2/3 C. 31 1/2 D. 56

Approximately 3.24 billion gallons of water flow over niagra falls daily. concrete or discrete?

Find the area of the following triangle. Round your answers to the nearest tenth. a = 44 in, b = 66 in, c = 88 in

8 + (-9x) + 19x simplify

List all of the integer values of x that are part of the solution set for the following inequality: - 7 < x < - 3.

Simplify 4xy + 4x - 3xy - x

Elimination of x-y=11 2x+y=19

the owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 L from a fertilizer

A community pool that is shaped like a regular pentagon needs a new cover for the winter months. The radius of the po is 20.10 ft. The pool is 23.62 ft on each side.

If h (x) = - 4x - 10, find h (-5). -30 1.25 10 -1

How many five-card hands chosen from a standard deck contain two hearts and three spades? Hint: In a standard deck of cards, diamonds and hearts are different suits. In this situation, they are different categories of cards.