Have do you turn 17/12 into a mixed numbers

1foot = 12 inches; 1 yard = 3 feet

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Which of the following shows the length of the third side, in inches, of the triangle below