Mark invested $500 in an account that pays 9% annual simple intrest. Make will not make any additional deposits or withdrawls. How much will mark earn on his investment at the end of 7 years

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*