Write a percent equation that can be used to solve the following problem 820 is 20% of what

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

Stefanie is painting her bedroom. she can paint 2 1/3 square feet in 4/5 of an hour. how many square feet can she paint in one hour?