Subsets of B with 2 items

Which of the following expressions is equal to 2x^2+8

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

Agrasshopper weighs 0.89 grams. express the grasshopper’s weight in scientific notation.