The perimeter of triangle b is 6 times greater than the perimeter of
triangle a. the area of triangle b is how many times greater than the
area of triangle a?

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

no solution

step-by-step explanation:

there is not enough information in the problem to solve.