The heights (in inches) for a sample of 21 male adults are
62, 82, 79, 76, 73, 70, 67, 64, 61, 80, 79, 60, 60, 71, 71, 71, 74, 74, 74, 75, 75
draw the frequency polygon for these data using an initial class boundary of 59.5, an ending class boundary of 84.5 and 5 classes of equal width. note that you can add or remove classes from the figure. label each class with its midpoint.

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?