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Answer:

Question 10:

21.75 ÷ 30 = 0.725

Move the decimal backwards 2 times

72.5

Answer: 72.5%

Question 11:

Sales: $768

Commission Rate: 4%

Commission: $30.72

768 x 4 = 3,072

3,072 ÷ 100 = 30.72

Answer: $30.72

Question 12:

Selling Price: $39.98

Tax Rate: 4.5%

Sales Tax: $1.80

39.98 x 4.5 = 179.91

179.91 ÷ 100 = 1.7991

Then you round to the thousandths.

1.799

1.8

Answer: $1.80

Question 13:

20% x 141 = 28.2

141 + 28.2 = 169.2

Answer: $28.20 gratuity is added to the bill.

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