Amber's birthday party will cost $12 if she invites 4 guests. If there are 7 guests, how much will Amber's birthday party cost (c)? Assume the relationship is directly proportional.

Answer:c = 21Step-by-step explanation:p = price per guest4p = 127g = cIf these two equations are directly proportional, p times 7 will give us the answer. First, let's figure out what p is:4p = 12p = 3                                      Divide both sides by 4Now we plug 3 in for g and solve our equation for 7 guests:c = 7(3)21 = cHope this helps,♥A.W.E.S.W.A.N.♥