Answer: the possible numbers of hours Susan could rent the boat is at most 5 hours
Explanation:
Let x represent the number of hours
for which Susan could rent the boat.
The boat costs $7 per hour. This means that the cost of renting the boat for x hours is 7x.
Susan has a discount coupon for $3 off. This means that the total amount that she would pay for x hours is 7x - 3
Susan wants to rent a boat and spend at most $32. This would be expressed as
7x - 3 ≤ 32
7x ≤ 32 + 3
7x ≤ 35
x ≤ 35/7
x ≤ 5