If you are good at math click on this question. I need help on all of them

What is the simplified expression for 6(2(y+x))

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

The first side of a triangle measures 5 in less than the second side, the third side is 3 in more than the first side, and the perimeter is 17 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side? s-5 ws-2 s+ 3 next question ask for turn it in