Answer:
1) A. 5 + 2.75 * S ≤ 21
2) 5
Explanation:
Well there is an initial price of $5 and $2.75 per stop, and she can only spend less than or equal to $21 we can make the following inequality,
5 + 2.75 * S ≤ 21,
Meaning, Q.1 is A
Now #2 is 5 stops because if we plug in 5 for s we get 18.75.
Thus, the most amount of stops she can afford is 5.
Hope this helps :)