Which relation is a function?

A. { (-5, 1), (4,9), (6, 10) }

B.{ (0, 3), (0, 9), (12,-4)

C.{-2, 10), (-6, 10), (-2,3) }

D.{ (5, 5), (5,9), (5, 15) }

Solution of 3/x + 8/y = - 1, 1/x - 2/y = 2 is

Giovanna, Frances, and their dad each carried a ten pound bag of soil into the back yard. After putting soil in the first flower bed, Giovanna's bag was 5/8 full, Frances bag was 2/5 full, and their dad's was 3/4 full.

John maintains an average monthly balance on his credit card of about $1800. His credit card company charges 21% annual interest. How much is he spending on credit card interest per month? Per year?

How many millimeters equal 1942 cm 3?

Catera has found that as she increases her price, p, the quantity she sells q decreases. The following equations relates q, the quantity she sells, to p, the price she changes. p = 284 - 4q Catera's price is $232.

What is the fraction and decimal for 71%

Two rectangular pyramids are similar. The smaller pyramid has a volume of 12 cubic feet, and the larger pyramid has a volume of 324 cubic feet. If the smaller pyramid has a height of 6 feet, what is the exact height (in feet) of the larger pyramid?

A swimming pool is open for 7 1/2 hours a day. Each lifeguard will stay on duty for 1 1/2 hours. How many lifeguards will be needed for one day?

Solve the inequality, then identify the graph of the solution. - 3x-3<6

If the slant height of a right cone is 5 inches, and the radius of its base is 3 inches, what is the lateral area of the cone?