Write the quadratic equation in standard form:
-7x + x2 = - 3x2 + 6

pleaseee i need help!!

-4x^2+7x +6

Step-by-step explanation:

-7x + x^2 = - 3x^2 + 6

Subtract x^2 from each side

-7x + x^2-x^2 = - 3x^2-x^2 + 6

-7x =-4x^2 +6

Add 7x to each side

-7x+7x =-4x^2+7x +6

0= -4x^2+7x +6

The standard form is Ax^2 +Bx +C

idk

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: