Answer:
Step-by-step explanation:
It’s b Height = 16 inches and Width = 13.5 inches
Explanation:
1inch = 40 feet
640 divided by 40 = 16 (height)
540 divided by 40 is 13.5 (width)
Height = 16 inches and Width = 13.5 inches
Hope this helps!
total = (# of hours) * (hourly rate)
divide each side by # of hours
315 divided by 37 1/2 = 8.4
She gets 8.40 per hour
By the product rule,

has derivative


Critical points occur where the derivative vanishes:


