Determine whether quantities vary directly or inversely and find the constant of variation. A rectangle has length 72 cm and width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm. Find its length.

The floor plan of a circular pool has an area of 201 square feet. To the nearest whole foot what is the radius of the pool

A game has three possible outcomes : win, lose, or tie. The probability of a loss is 0.1, and the probability of the tie is 0.5. on a single play of the game the probability of NOT winning is a) 0.1. b) 0.33. c) 0.5. d) 0.6.

Kayla age is 3 less than twice her brother age. Kayla is 13. How old. How old is her brother?

Let X be the number of independent Bernoulli trials performed until a success occurs. Let Y be the number of independent Bernoulli trials performed until 5 successes occur. A success occurs with probability p and Var (X) = 3/4 Calculate Var (Y)

The school production of 'Our Town' was a big success. For opening night, 323 tickets were sold. Students paid $3.50 each, while non-students paid $5.50 each. If a total of $ 1354.

What is x1/2 * x1/3 =

Adam drew two samw size rectangles and divide them into the same number of equal parts. He shaded 1/3 of one rectangle an 1/4 of the other rectangle. What is the west number of parts into which both rectángles could one divided

Two trains start heading toward each other from two cities, the distance between which is 720 km and meet right in the middle. The second train left 1 hour after the first train, but traveled at a speed 4 km/hour faster than the first train.

Divide X^2+77x+20 by x+9 what is the quotient and remainder?

Brass is made from a mixture of copper and other elements. A mixture that is 80% copper is combined with a mixture that is 60% copper, resulting in 100 pounds of brass that is 65% copper.