Ireally need on this, i don't quite understand what i am doing : .)

factor and show work

f ( x ) = 9 x 3 + 2 x 2 − 5 x + 4
g ( x ) = 5 x 3 − 7 x + 4
what is f ( x ) − g ( x ) ?

Select the best attribute for the angle pair formed by two parallel lines intersected by a transversal.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)