Question

Jackets cost $15 and a set of decorative buttons costs $5. The delivery fee is $5 per order. The expression 15 n + 5 n + 5 gives the cost, in dollars, of buying jackets with buttons for n people. Which is another way to write this expression?

Answer 1

20 n + 5

Explanation:

15 n + 5n + 5

15n + 5n = 20n

(20n + 5)