The red blood cell counts (in 10^5cells per microliter) of a healthy adult measured on 5 days are as follows:
50, 49, 55, 53, 48
Find the standard deviation of this sample of counts. Round your answer to two decimal places.

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?