I had $5 my mom gave me $10 my dad gave me $30 my aunt and uncle gave me$100 I had another $5 how do I have

The table shows the results of three plays in a football game. what is the net result of the three plays? football game 1st play 5 yards 2nd play -9 yards 3rd play 12 yards

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?

3.4a=57.8 what is the the value of a