does anybody understand 7th grade math really well and could please help me with my test. im failing and i could really use the help please.

Mr.geswein takes off 2 points for not showing work for each problem. james didn't show work on 6 problems.how many points did he lose?

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?

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift