Answer:
Ask your teacher
Step-by-step explanation:
25
This is the transitive property :)
1 hour=35+15=50
2 hours=35+15(2)=65
3 hours=35+15(3)=80
4 hours=35+15(4)=95
d :4h
hope this helps (;
Fist you add -13 to 6y and than 4x that should be 69420
Where's the problem?