There are 3 resistors in series: R1 = 37 Ohm, R2 = 24 Ohm, and R3 = 3 Ohm. Determine the equivalent resistance. Show all work and steps: 

1. Type the given information and assign a variable for each known value. 

2. Type the general equations that will be used to solve the problem using variables (no numbers yet) 

3. Type the given values with units to obtain the final answer.