Please answer correctly, Thank You!

Step-by-step explanation:

Pythagorean theorem,

x² = 15² + 8²

= 225 + 64

= 289

x=√289 =√17*17

x = 17 feet

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 : )