All need to have positive exponents only! simplify all and show work pls :) 1. (5/2)^3

2. 2^-4

3. (5h^-3)^2(3h^-7)

4. a^5b^7/a^4c^3
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What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer