Technician A says gear ratio expresses the size difference of two gears by stating the ratio of the driven gear to the drive gear. Technician B says the mathematical relationship, according to the number of teeth, of one gear to another is expressed in gear ratios. Who is correct?

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

what is the original number? you forgot to add it.

step-by-step explanation:

the anwser is x< -17/2