Unit 4, Lesson 10
Tax and Tip
Grade 7
Practice
Problem 1
In a city in Ohio, the sales tax rate is 7.25%. Complete the table to show the sales tax and the total price including tax for each item.
| item | price before tax (\$) | sales tax (\$) | price including tax (\$) |
|---|---|---|---|
| pillow | 8.00 | ||
| blanket | 22.00 | ||
| trash can | 14.50 |
Problem 2
The sales tax rate in New Mexico is 5.125%. Select all the equations that represent the sales tax, \(t\), that one would pay in New Mexico for an item of cost \(c\).
\(t=5.125c\)
\(t=0.5125c\)
\(t=0.05125c\)
\(t=c \div 0.05125\)
\(t=\frac{5.125}{100}c\)
Problem 3
Here are the prices of some items and the amount of sales tax charged on each in Nevada.
| cost of item (\$) | sales tax (\$) |
|---|---|
| 10 | 0.46 |
| 50 | 2.30 |
| 5 | 0.23 |
- What is the sales tax rate in Nevada?
- Write an expression for the amount of sales tax charged, in dollars, on an item that costs \(c\) dollars.
Problem 4
Your total bill at a restaurant is $24.
- If you pay $30, what percentage is the tip?
- If you pay $27, what percentage is the tip?
Problem 5
Find each amount:
- 3.8% of 25
- 0.2% of 50
- 180.5% of 99
On Monday, the high was 60 degrees Fahrenheit. On Tuesday, the high was 18% more. How much did the high increase from Monday to Tuesday?
Problem 7
Complete the table. Explain or show your reasoning.
| object | radius | circumference |
|---|---|---|
| ceiling fan | 2.8 ft | |
| water bottle cap | 13 mm | |
| bowl | 56.5 cm | |
| drum | 75.4 in |