The function c(x) = 3x − 4 determines how many cupcakes need to be purchased for a birthday party, where x is the number of kids at the party. the party planner uses d(c(x)) to find the amount of money to bring for the cupcake purchase. the function d(x) = 2x + 5. solve for how much money to bring when there are 7 kids at the party.

$39

Step-by-step explanation:

Given: The function determines how many cupcakes need to be purchased for a birthday party, where x is the number of kids at the party. The party planner uses d(c(x)) to find the amount of money to bring for the cupcake purchase. The function

Now,

To find the amount of money to bring when there are 7 kids at the party, put x in d(c(x)), we get

Hence, the amount of money to bring when there are 7 kids at the party = $39

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign