P=18 P'=10 scale factor

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.

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 *_*