HELP WOTH THE MATH PROBLEM. The photo is the first question and the second question is “how could you tell the sum would be positive based on the addends or arrows ?” Help with 2 questions I’ll mark u if u do

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Two parallel lines are crossed by a transversal.what is value of x

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?