In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 60 and a standard deviation of 3. Using the
empirical rule, what is the approximate percentage of daily phone calls numbering between 57 and
63?

Solve this problem! extra ! 3025/5.5 = a/90.75

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

Write as a product of two polynomials. 2(3–b)+5(b–3)^2