If you solve the inequality 2x < 14, the solution set is x < 7. Graph x < 7 on a number line. Which one of the listed values of x is included in x < 7?
A) x = 8
B) x = 7
C) x = 12
D) x = −8

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)