The subtotal of your computer purchase was $398.50. If the sales tax rate is 7.25%, how much will you pay in tax for the computer? I will Mark Brainliest
The answer is NOT 54.97

Don't forget to convert the percent into a decimal.

Amount of tax = 26.93 (Approx.)

Step-by-step explanation:

Given:

Cost of computer = $398.50

Sales tax rate = 7.25% = 0.0725

Find:

Amount of tax

Computation:

Amount of tax = [Cost of computer x Sales tax rate] / [1+Sales tax rate]

Amount of tax = [398.50 x 0.0725] / [1+0.0725]

Amount of tax = 26.93 (Approx.)

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

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