Mr. dixon bought a whiteboard that was on sale for 1,989.99. the regular was 2,499.89. which is the best estimate of the amount of money mr. dixon saved by buying the whiteboard on sale?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers