Answer:
$34 per client
Step-by-step explanation:
Revenue = (20 + 2x)(120 - 5x)
= 2400 + 240x - 100x - 10x²
= -10x² + 140x + 2400
= -10(x² - 14x) + 2400
= -10[x² - 2(x)(7) + 7² - 7²] + 2400
= -10(x - 7)² +10(49) + 2400
= -10(x - 7)³ + 2890
No. of clients = 120 - 5(7) = 85
Per customer: 2890/85
= 34
