Question

Elizabeth Heather and Erin share the same birthday. Theyve decided to join together to have one big birthday party. The event location says it will cost $70 for the rental of the space and $15 per guest. Each girl invites x number of guests, including themselves in their guest count.

The girls have each written a different correct expression to represent the total cost of the party. EXPLAIN how each of the 3 expressions below represents the total cost.
(a Elizabeths expression: 15x + 15x + 15x + 70

(b Heather’s expression: 15(x + x + x) + 70

(c Erin’s expression: x(15

Answer 1

(b) looks like the best one to me

Answer 2

thanks

Answer 3

your welcome