The total (after-tax) cost of a laptop computer is $1571.02. The local sales tax rate is 5.3%. What is the retail (pre-tax) price?

Retail price of laptop = $1491.94

Step-by-step explanation:

Price of laptop after tax = $1571.02

Local sales tax rate = 5.3%

Total price = Pre tax price + tax = (100+5.3)%

Total price = 105.3%

Let,

x be the pre-tax price

105.3% of x = 1571.02

1.053x = 1571.02

Retail price of laptop = $1491.94

answer: .75 km

step-by-step explanation:

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9