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

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

any of them that add up to 180 degrees.