Find the length of the two men, 72 inches and 5 feet, in feet. (the conversion factor is 12 inches/foot.)

a. none of these
b. 12 feet
c. 120 inches
d. 11 feet

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236