Use the discriminant to describe the roots of each equation. Then select the best description. x2 + 9x + 14 = 0
O double root
O real and rational roots
O real and irrational roots
O non-real roots

Ineed with number 17 i don’t get it at alll

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.