Answer:
Step-by-step explanation:
40x - 300,000
7,500
profit = revenue - cost
p(x) = 75x - (35x + 300,000)
p(x) = 40x - 300,000
Break even is when profit is zero
40x - 300,000 = 0
40x = 300,000
x = 7,500
22 miles
21
Answer: 1/2
y maximum is at 1 for both the points (4,1) and (-4,1)