Arestaurant chain had 15,250 locations in 1975. by 2000, they were 21,655 locations. what was the percent increased in locations over the 25-year period?

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?

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.