Answer:
Evelyn can drive 990 miles so her monthly car expenses are no more than $260
Explanation:
Set up an equation:
151 + 0.11 ≤ 260
Subtract 151 from both sides.
0.11 ≤ 109
Divide both sides by 0.11.
x ≤ 990.909091
The question said to round your answer down so the budget doesn't exceed, therefore the answer would be 990 miles.