What is the value of x in the equation
5x - y = 30, when y = 157

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

When y’all answer can y’all explain too !

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15