Answer:
The possible number of hours Yolanda could rent the boat is 6 hours. I hope this isn't too late, and it's not incorrect lol
Explanation:
7t - 3 ≤ 39
*We add 3 to both sides, which will cancel out the 3.*
7t ≤ 42
*We divide 42 by 7 to isolate the variable*
t ≤ 6