The number 80 is increased by 50%. the result is then decreased by 25%. what is the final number?

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Find dy/dx using implicit differentiation ln(20+e^xy)=y

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