If y=3x^3+x^2-5 and z=x^2-12 what polynomial is equivalent to 2(y+z)

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units

What is the factor form of x^2-9x+14

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .