Simplify the expression use only positive exponents:

1. 5^-4*5^-5/5^-6

PLZ HELP

The distance around the lake is 2 kilometers. ifelena wants to run 14 kilometers this week, howmany laps must she run around the lake

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?