You take the discount then the sales tax.
Turn discount into a decimal.
25% = 0.25
Multiply.
65 * 0.25 = $16.25 (Discount)
Subtract.
65 - 16.25 = $48.75 (After discount if applied)
Now, we need to find the sales tax.
Turn sales tax into a decimal.
6% = 0.06
Multiply.
48.75 * 0.06 = 2.925
Add.
48.75 + 2.925 = 51.675
Hence, Thom doesn't have enough money to buy the radio. If he only had $50 to spend then even with the discount the radio is still more than what he intended to pay. 51.675 > 50
Hope This Helped! Good Luck!