3. Mrs. Bern purposefully made a mistake when solving a problem in front of the class. Which statement below identifies her mistake?
3
23 +13
2
10
4
= 3
10 10
A. Mrs. Bern did not add the denominators correctly.
B. Mrs. Bern did not find a common denominator.
C. Mrs. Bern did not find the correct equivalent fractions.
D. Mrs. Bern did not add the whole numbers correctly.

What is the equation of the line shown in this graph?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?