A video store rents new release movies for $7 and favorites for $3.75. One day the number of new release movies rented was twice the number of favorites. If the total income from those rentals was $1,686.25, how many movies of each kind were rented?

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 *_*