If the ratio of red hair bands to green hair bands is 5 to 9 with a total of 70 hair bands, how many of them are greeen?

Find the solutions for a triangle with a =16, c =12, and b = 63º

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.