**CALCULATOR HELP** you dont need to do all the problems you can just choose one, but im in algebra ii and my future teacher gave us this expecting to know how to use a ti-89. and i dont. unfortunately. please help if you can. thanks (refer to attached picture)

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)