## Answers

1. solve for y:2x+3y=9 y = (-2/3)x+3 --------------- 2. solve for x: 5x+4y+20=0 x = (-4/5)y - 4 --------------- 3. solve the formula for L:P=2L+2W L = (P-2W)/2 -------------------- 4. solve the formula for R: E=IR R = E/I ----------------- simply expression with rational exponets 5.

Simplify: (b with neg.2/3 power)neg.6th exponet b^(-2/3)^(-6) = b^(4) ------------------------- 6.simplify: square root of 16a to the 4th power sqrt(16a^4) = 4a^2 ======================== Cheers, Stan H..

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