Which of the following shows the correct evaluation for the exponential expression 1/5^3
a. 1/5 x 3= 3/5
b. 1/5 x 1/5 x 1/5 = 1/125
c. 1/5 + 3 = 3 1/5
d. 1/5 divided by 3 = 1/5
it's 6 grade math !

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?