# Vlad spent 20 minutes on his history homework

### Question:

Which types of operations are used in logical operations?

### Answer:

Vlad worked on his history homework for 20 minutes, and then he did x math problems that each took 2 minutes to finish. The equation that can be used to figure out how long Vlad spent on his homework in total. So, the constraints on the values of x and y are met by the equation Y=2x+20, where x is any integer greater than 0 and y is any integer greater than 20.