Please help Im sorry if the points are not a lot I dont have much XD

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Which graph corresponds to the function f(x) = x2 + 4x – 1?