exam Maths Puzzle Numerical Ability

Simplify and write the answer with all exponents positive.

(5c -3power d4power/p-2power)-1power (p7power d-1power/c2power)2power

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exam Other Question

Tutor could you help me please? I didn't know under what category I should have placed this question, I apoligize if I did not place this under to correct area. This is a Punnett Solve each system of linear equations by using substitution.

{3/5x-2y=5} All in one question
{x=4/5y+2}