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

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jame pay at the end?

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function