A jeweler has 20 ounces of a gold alloy worth $160 per ounce and 10 ounces of a silver alloy worth $140 per ounce. She has a third alloy that is worth $124 per ounce. How much of this third alloy must she combine with the other two to make 3-ounce pieces of jewelry worth $438 each?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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.

You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).