A television regularly costs $180, but it is on sale for 40% off. There is a 5% sales tax on the sales price. How much does the television cost after the dicount and the sales tax

$113.40

Step-by-step explanation:

TV = $180

40% = 40/100 = .4

$180 * .4 = $72

$180 - $72 = $108 is the sales price.

Sales tax

5% = 5/100 = .05

$108 * .05 = $5.40

$108 + $5.40 = $113.40

The TV costs $113.40 including tax, after the discount.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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