Anonym Anonym 15-04-2015 Mathematics Answered 15 POINTS. PLEASE HELP. Simplify the expression. (This is a fractions, so "over" is the fraction bar.) 1. 5t ^ -1 over (10t²) (3t^0) Simplify the expression. (This is a fraction, so "over" is the fraction bar. 2. (2a) (6a²) over 4a³