Help me will give out brainlist and all that good stuff

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.