Fiona has a box with 5 red buttons and 9 blue buttons. She randomly selected one button, took it out of the box, then selected another button. What is the probability that both buttons are red? A.4/25
B.10/91
C.9/29
D.1/3

Which expression is not a polynomial?

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min