20 points!! Multiply with Monomials
plz help I need these done today

1. Which equation does not support the fact that polynomials are closed under multiplication?

Question 1 options:

−1⋅−1=1

1/3⋅3=1

1/x⋅x=1

1⋅x=x

2. Multiply and simplify.
x^2⋅x⋅x^5

3. Multiply and simplify.
(3x+7)8x2

Me what is the value of x? showing work would be appreciated - ! : )

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?

The difference between tax advoidance and tax evasion