s1w6 Thursday Bellringer

John knotted 20 yards of cable, and James knotted 15 yards of cable. How many yards did they work on together

Juan knotted 20 yards of cable, and Santiago knotted 15 yards of cable. How many more yards did Juan knot than Santiago

Raj knotted 20 yards of rope in two days. if he worked on 5 yards on the second day, how much did he do the first day?