Which is the expected value of M?

Which of the following is most likely to cause a variation in American household spending patterns? 

In order to facilitate independent random sampling, ____ must be utilized.

Solve.For a recruitment brochure, a college presented the following graph indicating the continental homes of its student population. Write the percent of students from Africa as a fraction in simplest form.

Write the decimal as a percent.0.028

Solve.A car rental agency advertised renting a luxury, full-size car for $24.95 per day and $0.39 per mile. If you rent this car for 4 days, how many whole miles can you drive if you only have $200 to spend.

Name the property illustrated by the statement.3(x + 3) = 3x + 3 ∙ 3

Solve.The president of a certain university receives a salary three times the salary of one of the department heads. The total of the two salaries is $210,000. Determine the salaries.

Solve the equation for the indicated variable.Solve the equation for the indicated variable.3x – 8y = 10 for y

Solve.-8z = –