Heather had $105 in her bank account. Since then, she has spent $45. She plans to spend $9 on a movie ticket each month. Which inequality could be used to find the number of movie tickets she
can buy?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample