A bag contains purple marbles and green marbles, 39 in total. The
number of purple marbles is 9 less than 3 times the number of
green marbles. How many purple marbles are there?

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Triangle knm is what is true about the sides of knm