Assume that C(x) is in dollars and X is the number of units produced and sold. For the total-cost function C(x) = 0.01x² +0 4x + 20, find AC and C'(x) when x = 90 and AX-1
AC-
(Simplify your answer. Type an integer or decimal rounded to two decimal places as noeded)
C'(x) when X-90 is $ per unit.
(Type an integer or a decimal.)

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours

86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2

c

step-by-step explanation: