Is -4 irrational or rational

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm