Suppose that the number of Facebook friends users have is normally distributed with a mean of 139 and a standard deviation of about 42. Assume forty-four individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible.

The dinner bill is $72.  I have $21.57 and my friend has $36.42.  How much more is needed?

An eye doctor charges an exam fee, plus a charge for the number of boxes of contact lenses purchased. Lindsey had an exam and ordered 2 boxes of contact lenses. She paid $112.97. Josh had an exam and ordered 6 boxes of contact lenses. He paid $272.93. How much is the exam fee (in dollars.cents)? 10000 190000 19C00 190000 10O0000000000O

Angie got 7 more correct answers than sahil on the drivers education test. Sahil that 34 questions correct how many did Angie