Let f(x)=7x3−2x−12and g(x)=−3x3−8x2+10x what is the function rule for (f+g)(x) ? a. (f+g)(x)=4x6−8x2+12x−12 b. (f+g)(x)=4x6−8x2+8x−12 c. (f+g)(x)=4x3−8x2+8x−12 d. (f+g)(x)=4x3−12x2+8x−12

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?