Question

Jenna's retirement party will cost $9 if she invites 3 guests. If there are 5 guests, how much will Jenna's retirement party cost? Assume the relationship is directly proportional.

Answer 1

$15

Explanation:

3 guest = $9 (9/3 = 3 so each guest is $3)

so

5 guest = $15 (3 x 5 = 15)