Charlene has a special brownie recipe she needs 2 and 2/5 cups of sugar for the mix 1 and 1/12 cups of sugar for the icing how much sugar does she need in all?​

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?