-0.3\,,\,0.9\,,-2.7\,,\,8.1,...−0.3 ,0.9,−2.7,8.1,...Minus, 0, point, 3, comma, 0, point, 9, comma, minus, 2, point, 7, comma, 8, point, 1, comma, point, point, point.

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?