What are two factors of 864 that add up to -12

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?

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20