The quantities xxx and yyy are proportional. x y 15 5 25 8\dfrac{1}{3}8 3 1 8, start fraction, 1, divided by, 3, end fraction find the constant of proportionality (r)(r)left parenthesis, r, right parenthesis in the equation y=rxy=rxy, equals, r, x

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 parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1