In the United States, 20 out of 80 cell phones are recycled every hour. What is the percent of cellphones recycled?

Subtract (9x-8) - (x+4)

suppose y varies directly with X, and Y = 22 when x = 8 what is the value of y when x = 10

Solve this system of linear equations. separate the x - and y - with a comma 2x=-78-20y -x=-51-20y

Amir and Marvin continue until they each flip a coin 200 times. How do you expect Amir's results and Marvin's results to compare? How will their results compare with expected results based on theoretical probability?

During a 12-hour period, the temperature dropped 48 degrees. How many degrees did the temperature drop each hour?

Consider m = y2-y1 x2 - x1 which x1 and x2-values would determine that he line is vertical? Justify your answer

Use the factor theorem to determine whether the binomial x + 1 is a factor of the polynomial function ƒ (x) = 2x3 - 9x2 + 13x - 6.

Is three squared a rational number

6 students share 5 small pizza equally

Which property of multiplication is used to rename 5/6 to 10/12?