Simplify the expression x^2-8x-9/5x^2-45x

Football player weighed 170 2/3 pounds in may. during the summer he gained 25 5/12 pounds. during the first week of fall practice he lost 10 1/4 pounds and during the second week he lost another 3 1/2 ponds. how much does he weigh at this point? a.182 1/3ib b.181 1/2ib c.182 5/12ib d.183 2/3ib

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x