Questions: It costs 8 for a bucket of golf balls and 15 to rent golf clubs at a driving range. a. Write an expression to represent the total cost to rent golf clubs and b buckets of golf balls. b. What is the total cost with 3 buckets?

a. Write an expression to represent the total cost to rent golf clubs and \( b \) buckets of golf balls.

Identify the costs

The cost to rent golf clubs is \(\$15\), and the cost for one bucket of golf balls is \(\$8\). For \( b \) buckets, the cost is \( 8b \).

Combine the costs

The total cost is the sum of the cost to rent golf clubs and the cost for \( b \) buckets of golf balls:
\[
15 + 8b
\]

The expression for the total cost is \(\boxed{15 + 8b}\).

b. What is the total cost with 3 buckets?

Substitute \( b = 3 \) into the expression

Substitute \( b = 3 \) into the expression \( 15 + 8b \):
\[
15 + 8(3)
\]

Calculate the total cost

Calculate the multiplication and addition:
\[
15 + 24 = 39
\]

The total cost with 3 buckets is \(\boxed{39}\).

The expression for the total cost is \(\boxed{15 + 8b}\).
The total cost with 3 buckets is \(\boxed{39}\).