What is the algebraic property of 4(x+y)=4x+4y

It says factor each expression completely 8y+48

There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?

P= price tax is 4% added to the price. which expression shows the total price including tax?