So 60% = 3/5
All you do is 3/5 x 10 = 30/5 and get 6
(f+g)(x)=f(x)+g(x)=(2x-6)+(4x+7)=6x+1
(f-g)(x)=f(x)-g(x)=(2x-6)-(4x+7)=-2x-13
(fg)(x)=f(x)×g(x)=(2x-6)(4x+7)=8x^2-10x-42
(f+g)(-2)=f(-2)+g(-2)=(2(-2)-6)+(4(-2)+7)=-11
85.7%
4500/5250=.857
move decimal 2 places to the right to convert a decimal to a percentage
I think the answer is the second one! Hope this helps!
