A bag contains 5 black, 10 white, 4 orange, and 6 brown pyramids. Maria selects a pyramid, not replace it, and then selects a second pyramid. P (white, white)?​

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.