HELP THIS IS A BIG TEST WILL GIVE BRAINLIEST

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

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