When is it easist to find the percent of a number using a percent?

What is the inverse of the function f(x)=2x+1

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93