Final answer:
Max will spend $105 on 5 guitar lessons, as each lesson costs $21 and 21 multiplied by 5 equals 105.
Step-by-step explanation:
Max is interested in starting guitar lessons. If each lesson costs $21, to find out the total cost for 5 lessons, we need to multiply the cost of one lesson by the number of lessons Max wants to take. So, the calculation would be:
$21 (cost per lesson) × 5 (number of lessons) = $105.
Therefore, Max will spend $105 on 5 guitar lessons.
So, the correct answer is:
C) $105