Find the sum and simplify 2_1/3 + 1_3/ 4

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Reflect the point (7,0) across the y-axis

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.