Worked examples
Two examples
Example 1
In New York City the sales tax is 8.875%. What is the total for a lamp that costs $40.00?
- The tax: 40 × 0.08875 = 3.55.
- The total: $40.00 + $3.55.
Answer: $43.55
Example 2
In New York City the sales tax is 8.875%. What is the tax on a jacket that costs $64.00?
- 64 × 0.08875 = 5.68.
Answer: $5.68
Where this is taught: Ratio, Proportion, and Percent, “Sales tax”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Type the amount only, like 12.50; the unit is already there. Then press Check my answers at the bottom.Write each answer on the line. The answer key, with the reasoning, is on the last page.