Answer:
The price that maximizes the revenue is $20
Step-by-step explanation:
(a) Express the daily revenue from ticket sales, R as a function of the number of $1.00 price increases,
R(x) = (70000-2500x)(12+x)
(b) What ticket price maximizes the revenue from ticket sales?
The ticket price that maximizes the revenue is associated with the x of the vertex of the parabola.
R(x) = (70000-2500x)(12+x) = 840000 + 70000x - 30000x - 2500x² =
-2500x² + 40000x + 840000
x vertex = -b/2a = -40000/2.(-2500) = 8
12+8 = 20
Answer:
Option E.
Step-by-step explanation:
Let the intended length of Rebecca's swimming is = x units
and we assume the length of the pool = l units
Now it is given in the question that " She covers one fifth of her intended distance "
That means distance covered = 
" After swimming six more lengths of the pool she had covered one quarter of her intended distance"
So 


x = 20×(6l)
x = 120l
Therefore, Rebecca has to complete 120 lengths of the pool.
Option E is the answer.
Given:
1.75 cups per batch
That is

Therefore, 5.25 cups will make

Answer: 3 batches
His equation could be written in quadratic form, which is ax^2+bx=c