The duration of routine operations at Charlotte General has approximately a normal distribution with an average of 125 minutes and a standard deviation of 18 minutes. a. What proportion of operations last at least 120 minutes?
b. What proportion of operations lasted between 90 and 130 minutes?
c. What proportion of operations lasted less than 122 minutes?

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation:

wait this depends wether emily and zach how they are thinking.

yes they are the same.

54/3 is 18 so 18 is your answer