Can somebody please tell me the answer for this problem please

Acompany is making new soccer uniforms for a team. the company uses 2.5 yards of fabric for each shirt. the company uses 82.5 yards of fabric to make shirts and shorts for 15 players. the equation and solution below represents the situation. 15(2.5+x)=82.5; x=3 what does the solution, x=3, represent?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Factor the polynomial by its greatest common monomial factor.