Agroup of objects or numbers is called

I'm pretty sure it's called a set. I'm not sure though.

paul's with a y-intercept of $ 2856

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 *_*