Hanna has $11.20 in a jar that contains only nickels and dimes. The are 140 coins in the jar. How many of each coin does Hanna have?

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 *_*