If m<1=53°, what is m<4?

no idea. How are they related?

Anything you can provide on chapter 10 test greatly appreciated!

m<1 = 53.

m < 4 = 4 * 53 ,
m < 4 = 212.

To answer this question, we need more information or a diagram to determine the relationship between angle 1 and angle 4. Without the given information, it is not possible to directly find the measure of angle 4.