Answer:
b. J + .07 * J
c. (.07 * J) + J
Explanation:
The tax on an item is a certain percentage of the cost of the item that is added to the item.
total cost = cost of item + tax on item
In this case, the cost of her items before tax is J.
The tax rate is 7%, so she must add 7% of J to J.
amount of tax: 7% of J = 7% * J = 0.07 * J
Now you add the cost of the items, J, with the amount of the tax, 0.07 * J.
Total cost:
J + 0.07 * J is correct
0.07 * J + J is also correct
Answer:
b. J + .07 * J
c. (.07 * J) + J