### Home > MC1 > Chapter 9 > Lesson 9.2.4 > Problem 9-91

9-91.

Look at the Math Notes box below for help getting started on this problem.

6(5) − 4 = 26

Remember that 8*r* means 8 *r*'s or (8)(*r*).

29

Remember that the exponent (the two) means that you will multiply *r* by itself.