Cassandra obtains a loan with simple interest to buy a car that costs $8,500. If Cassandra pays $1,020 in interest during the four-year term of the loan, what was the rate of simple interest? I need it in percent. For example 74%.

What is the percent of increase for a population that changed from 438,000 to 561,000

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?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?