Answer:
The ticket price that maximizes revenue is $18.10
Explanation:
Hi, first we need to construct the revenue equation in terms of the additional dollar charge (that would be X). That is:


So we expand it:


This is a parabola, and we need to find its vertex, which in our case that would be the maximum additional dollar charge in order to obtain the highest revenue possible, to find the vertex, we need to consider that:

And to find the X-coordenate we have to use the following equation.

In our case, A= -65; B= 1,247.5, so, all should look like this:

That means, we need to make 9.6 increments of $1 in order to obtain the max revenue possible, therefore, the price would be
Price = $8.50 + $1(9.6)= $8.50 + $9.6 =$18.10
Best of luck.
Answer:
WACC for A: 9.05%
WACC for B: 9.50%
WACC for C: 12.20%
WACC for D: 12.65%
Explanation:
WACC for a division will be equal: Percentage of Debt in capital employed by the Division x Cost of Debt + Percentage of Equity in capital employed by the Division x Cost of equity = 50% x 6% + 50% x ( Risk free rate + Beta of each Division x Risk premium) = 3% + 50% x ( 4% + beta of each Division x Risk premium)
Risk premium for the 4 Divisions is equal to (Cost of equity for the whole firm - Risk free rate) / beta = 9%
Thus WACC for a division will be equal: 3% + 50% x ( 4% + beta of each Division x 9%).
Substitute beta of each Division from A to D provided in the question, we have: WACC for A: 9.05%; WACC for B: 9.5%; WACC for C: 12.2%; WACC for D: 12.65%.