*answer asap *
i know the answer is 12, but can someone show examples and details on how it is 12? ?
i have to show details on how i got my answer.

The answer to your question is CH = 12.11

Step-by-step explanation:

Process

1.- From the picture we know that the length of BF is equal to CF

            BF = CF = 9.9

2.- Also we know that the triangle BCG is a right triangle where

    BC = hypotenuse

    BG and CG are the legs of the triangle

    then     BC² = BG² + CG²

BC = 9.9 x 2 = 19.8

BG = 8

Substitution

                CG² = BC² - BG²

                CG² = 19.8² - 8²

Simplification and result

                CG² = 392.04 - 64

                CG² = 328.04

                CG = 18.11

3.- Find CH

                CG = CH + GH

Solve for CH

                CH = CG - GH

Substitution

                CH = 18.11 - 6

Result

                CH =  12.11

their is no graph showing

step-by-step explanation:

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: