Translate this sentence into an equation. The sum of 20 and Donnie's age is 40

use variable d to represent donnie’s age

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

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.

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81