Question

The expression 9a + 7c gives the cost (in dollars) for a adults and c children to eat at a buffet restaurant.

a. The cost for 1 adult is?
The cost for 1 child is?
b. The total cost for 1 adult and 3 children is?
c. Is $30 enough for a family of 2 adults and 2 children to eat at the buffet?

Answer 1

a. $16

b. $30

c. for 2 adults and 2 children it is $32, so they are $2 short.

Explanation:

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