Mrs. Diaz needs a new whiteboard for her classroom. She can buy it from Office Supply for $49.99 with a 15% teacher discount, or from Office Wholesale for $47.99 with a $10 rebate. Find the final price that Mrs. Diaz has to pay for the whiteboard after the better incentive is applied. Round the answer to two decimal places.(1 point)

The final price that Mrs. Diaz has to pay for the whiteboard using the better incentive is $?

With the teacher discount, Mrs. Diaz gets 15/100 * 49.99 = $<<15/100*49.99=7.50>>7.50 off at Office Supply.

So the price she has to pay at Office Supply is 49.99 - 7.50 = $<<49.99-7.50=42.49>>42.49.
With the rebate, the final price at Office Wholesale is 47.99 - 10 = $<<47.99-10=37.99>>37.99.
So the better incentive is offered by Office Wholesale, and Mrs. Diaz's final price is $37.99. Answer: \boxed{37.99}.