A random sample of 16 items is drawn from a population whose standard deviation is unknown. The sample mean is x¯ = 890 and the sample standard deviation is s = 15. Use Appendix D to find the values of Student’s t.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12