Travis read 15 books, 10 magazines, and 25 newspaper articles last year. Based on this data, what percentage of the material that Travis read is a book?

30%

Step-by-step explanation:

15+10+25=50

50x2=100

15x2=30

30/100=30%

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 : )