Step 1 :Estimate the following percentages:
Step 2 :a) \(10 \%\) of 89
Step 3 :b) \(19 \%\) of 40
Step 4 :c) \(25 \%\) of \(\$ 198\)
Step 5 :d) \(9 \%\) of 80
Step 6 :e) \(70 \%\) of 31
Step 7 :f) \(49 \%\) of \(\$ 201\)
Step 8 :Use the formula: \((\text{percentage} \times \text{value}) \div 100\)
Step 9 :a) \(\frac{10 \times 89}{100} = 8.9\)
Step 10 :b) \(\frac{19 \times 40}{100} = 7.6\)
Step 11 :c) \(\frac{25 \times 198}{100} = 49.5\)
Step 12 :d) \(\frac{9 \times 80}{100} = 7.2\)
Step 13 :e) \(\frac{70 \times 31}{100} = 21.7\)
Step 14 :f) \(\frac{49 \times 201}{100} = 98.49\)
Step 15 :Final Answer:
Step 16 :\(\boxed{a) 8.9}\)
Step 17 :\(\boxed{b) 7.6}\)
Step 18 :\(\boxed{c) 49.5}\)
Step 19 :\(\boxed{d) 7.2}\)
Step 20 :\(\boxed{e) 21.7}\)
Step 21 :\(\boxed{f) 98.49}\)