ILL GIVE BRAINLIEST PLEASE HELP Melissa is scuba diving. She stops to look at a fish that is 16.4 meters below the surface. Then she swims down 7.4 meters to look at a reef. If she then swims up 4.5 meters, which is the BEST approximation of Melissa’s position relative to the ocean surface?

8.74 rounded to the nearest whole number

What is the sum of these mixed numbers 4 2/3+ 3 1/9

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