Determine whether the 4 points (2,1), (-1,5),(1,5) and (-2,-1) are the vertics of a parallelogram

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

What is not true about kl and mn? what is mn? (show )