Answer:
-7
Step-by-step explanation:
-4(2)=-8
-8+1=-7........
Answer: 7x-5
Step-by-step explanation:

Answer:
A (painter 1) = 10 hours
B (painter 2) = 15 hours
Step-by-step explanation:
Answer:
that would be C sorry if im wrong i tried working it out
Step-by-step explanation:
IT is prime. Nothing other than itself and 1 can go into it.