Sal and two of his friends rent an apartment together. their total cost to move in included first months rent, last months rent and a security deposit of $1,200. if sal paid a total of $1,000 to move in, how much is his share of the rent each month? .

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