8. Rene can type a research paper in 8 hours. Mario helped Rene in typing, and together they finished in 6 hours. How long will it take Mario to finish the job alone?
A 20 hours
B. 22 hours
C. 24 hours
D. 26 hours​

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

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2