The person who asked to see the full pic here it is & if anyone wants to help out also

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)

Solve the equation. 2x - 8(x+1)= 6(2x - 3)