Answer:
30 students would have to go for the cost to be the same.
Step-by-step explanation:
Bus A: $40 + ($4 * 30) = $160
Bus B: $100 + ($2 * 30) = $160
Hi there!

First subtract 3x^2 from both sides.

Now rearrange the equation.

Finally we can see our answer.


The slope of the line is 2/3, so the angle is arctan(2/3) ≈ 33.69°.