Error analysis Student 1

3x +4 = 25
3x+4+ (-4) = 25 + (-4)
3× ÷ 3 = 21÷ 3
x - 7

Student 2

× ÷ 4 - 5 = 7
× ÷ 4 - 5 + (-5) = 7 + (-5)
4• × ÷ 4 = 2• 4
x= 8

Student 3

51 = -15z + 6
51+ (-6) = -15z + 6 + (-6)
45÷ -15 = -15z ÷ -15
z= -3​​

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:

inverse property is the answer

step-by-step explanation:

step-by-step explanation: