7. What are the factors of x2 - x - 30?
a. (x + 1)(x - 30)
b. (x + 5)(x-6)
c. (x + 6)(x - 5)
d. (x - 1)(x +30)

B (x+5)(x-6)

Step-by-step explanation:

if you do the foil method on (x+5)(x-6) you get

x^2 5x  -30

     -6x

if you combine you get

x2 - x - 30

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:

what shape is