Factor.

12x5+6x2−18

12(x5+6x2−18)

6(2x5+6x2−18)

6x2(2x3+x−3)

6(2x5+x2−3)

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

Ineed the answers for this one as well!

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?