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$105.25

Step-by-step explanation: The first step is to calculate the total of the purchases that she made, which is done by this formula:

(2x$16) + 40 +25=

$32 + 40 + 25 =

$97 is the total of the clothing

Tax is 8.5%, so to calculate the tax by multiplying .085 x 97 = $8.25 Sales Tax

In order to determine the total, add $97 + 8.25 = $105.25

a) 72 : 64 and 27 : 4

Step-by-step explanation:

a) 72 : 64 and 27 : 4

72 /64 = 27/4

9/8 ≠ 27/4

Not equal

b) 90 to 18 and 5 to 1

90 : 18 = 5/ 1

5/1 = 5/1

Equal

c) 25 to 10 and 10 to 4

25 :10 and 10 : 4

25/10 = 10/4

5/2 = 5/2

Equal

d) 6 : 7 and 30 : 35

6/7 = 30/35

6/7 = 6/7

Equal

The pair of ratios that is not equal is

a) 72 : 64 and 27 : 4