A student scores 71 out of 100 on a test. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 82?

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)?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?

In the diagram below,abc is congruent to dec what is the value of x