Simplify the expression use only positive exponents:

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

PLZ HELP

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?