6. fatima bought a xbox game that is $38.00 plus 9%
sales tax. what is the sales tax on the xbox game that
fatima purchased?

  Total sales tax = $3.42

Step-by-step explanation:

Total sales tax = Item or service cost × sales tax

TST = IC × ST

 Item cost   = $38.00

Sales Tax = 9%

                 =

                 = 0.09

Total sales Tax = 38 × 0.09

                          = $3.42

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have