Hey can someone help me ? 6th grade math .. I’ll give BRAINLIST .. please help me I’m begging

Let w=23 . what is the value of w + 45 ?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?