Answer:
1.25
Step-by-step explanation:
Oliver is incorrect because if he were correct he would learn for 2 hours and 15 minutes because, 45 minutes * 3= 2:15 minutes.
Answer:
part 1= "72=(2w)+(w-15)"
part 2= "29"
I'm not sure if they want "w = abc"
I used that equation to solve part 2
Hope this helps you, I've been where you are