Please help me with this because it's do in 30 minutes
8 ÷ 3/4 as a whole number

Find the solution of system of equation y= x-4 y=4x+2

Find the quotient. 50a2 – 98b2 -5a +7b

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.