Find y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10 a. y=1/2.y•12; 15/4 b. y=1/2. y•15; 12/4 c. y=1/16. y•15; 15/4 d. y=1/16. y•2•15; 12/4

Which statement best describes the polynomial

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles