Easy question, basic, for 75 amazing points!

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

7x^2-9x+5=0 find the discriminant and number of real solutions