Rewrite using a single positive exponent 4^2/4^-7

Franco wants to double the volume of the cone. what should he do?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

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.