PLEASE help me do this I only need # 8 10 12 19 21 and 22 done (DONT JUST TYPE A RANDOM ANSWER TO GET POINTS)

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Which value would be a solution for x in the inequality 47-4x< 7

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.