Which of the following relations is a function?

A.

(2, 1), (-2, 4), (-5, 1), (2, - 5)

B.

(-5, 4), (-2, 6), (-5, 3), (7, 2)

C.

(-5, 1), (-2, - 5), (2, 5), (7, 1)

D.

(-5, 1), (-2, 4), (2, - 5), (-2, 6)

7/8 of a number is 14

How many yards equals 765 inches? Enter your answer, as a decimal.

What is 1/4 of 50.?

Factor the following expression. 27y^3 - 343

A rug is to fit in a room so that a border of even width is left on all four side. If the room is 12 feet by 15 feet and the area of the rug is 108 square feet how wide will the border be

Leo's family keeps recyclables in a cylindrical trash can. Today Leo bought a larger can with a radius and height that are twice the radius and height of the old can. Leo claims the new and old cans are geometrically similar figures.

The value of Maggie's car decreased by 30% since last year, when she bought it. If the car is now worth $17,000.00, how much was the car worth when she bought it?

The base of a rectangle has a length of 4 inches and a diagonal has a length of 5 inches, Find the area of the rectangle

A ball is thrown from an initial height of 7 feet with an initial upward velocity of 28/fts. The ball's height h (in feet) after t seconds is given by the following. = h+7-28t16t2 Find all values of t for which the ball's height is 15 feet.

The sum of two twin primes is 60. What are the numbers