Can someone help me with these questions

1. 1/40

2.9/50

3.1/5 =0.2=20%

i dont know the rest sorry , but is that a dog behind it the paper ?

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )