The graphed line represents both linear equations y=-2x+1 and 3y=6+3 how many solutions does the system of equations have

Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

What is the factored form of the following expressions? d^2 – 13d + 36

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)