Answer:
t≤ 9
Step-by-step explanation:
3.5+4t≤ 39.5
subtract 3.5 from each side
4t≤ 36
divide each side by 4
t ≤ 9
3.5 + 4t ≤ 39.5
3.5 + 4t - 3.5 ≤ 39.5 - 3.5
4t ≤ 36
4t ÷ 4 ≤ 36 ÷ 4
