Final answer:
The sales tax rate on the supplies Jenny bought is 8%, which is calculated by dividing the sales tax amount by the cost before tax and then multiplying by 100.
Step-by-step explanation:
To find the sales tax rate that Jenny paid on her purchase, we need to divide the amount of sales tax by the cost of the supplies before tax. So, we divide $5.66 by $70.75 to determine the tax rate. To express this as a percentage, we multiply by 100.
Here is the step-by-step calculation:
- Divide the sales tax ($5.66) by the cost of the supplies before tax ($70.75): $5.66 ÷ $70.75 = 0.08.
- Multiply the result by 100 to get the percentage: 0.08 x 100 = 8%.
So, the sales tax rate on the supplies Jenny bought is 8%, when rounded to the nearest tenth.