To calculate the tax Angela will have to pay for the slice of cake, you can use the following formula:
\[ \text{Tax} = \text{Price} \times \text{Tax Rate} \]
In Angela's case:
- Price = $8
- Tax Rate = 7.5% = 0.075 (as a decimal)
Now, plug in the numbers:
\[ \text{Tax} = 8 \times 0.075 = 0.6 \]
So, the tax will be $0.60.
To find the total amount Angela will pay, add the tax to the original price:
\[ \text{Total} = \text{Price} + \text{Tax} = 8 + 0.6 = 8.6 \]
Therefore, Angela will have to pay a total of $8.60.