Um try c but i’m just guessing sorry
If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).
15<u>7</u> ≈ 160
The answer is C because if you have 1 bus that’s 35 so it would be y=35(1) then if you have 2 buses it would be y=35(2) That gets you 70 seats. :)