Ratios & Proportions
What is 30% of 400?
120
Solve
5x = 35
7
30% of what number is 45?
150
Solve
-3(4 - x) = 200
70.67
You buy a meal that costs $30. The sales tax is 6%. You leave a 12% tip based on the price before tax. How much did you pay in total (including sales tax and tip)?
$35.40
Jacob sold his iPhone in California and collected $32.90 in sales tax from the buyer. The sales tax rate in his city is 8.7%. How much did Alex sell the iPhone for before tax?
$378.16
Mia went to a clothing store to buy a jacket. The store was offering a 20% discount on the original price. After the discount, the jacket cost her $48.00. Mia also had to pay 8.875% sales tax. How much money did Mia save in total, including tax, compared to buying the jacket at its original price with tax?
$13.07