Pizza Pies charges $12 for a medium pizza and an additional $0.50 for each topping. Write an equation to represent the total cost, C, of a medium pizza with t toppings. Then identify the independent and dependent variables in this situation. C = 12t + 0.5
C = 0.5t + 12
t = 12C + 0.5
t = 12 + 0.5C

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