I need help what is the area of this composite figure​

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?

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.