Identify the function in which y varies directly with x. y = x y = 9x + 9 y = 0x y = 9x − 9

The equation in which y varies directly with x is y = x.

This is because no matter what value of x we put in, we get the same y. So when we change x, y changes directly. No other equation has that same fact. As a result, this is the only direct variation.

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:

mnkjn

step-by-step explanation: