The price of a fan is 15 dollar the price is 27% lower than last week

$55.56 - $40.56 = $15
100% 73% 27%
^ ^
last week this week

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 *_*