Use the quadratic equation x2+6x+9= 0 to answer the questions.
A: What is the discriminant of the quadratic equation?
B: Based on the discriminant, which statement about the number and type of solutions to the equation is
correct?
Select one answer choice for part A, and select one answer choice for part B.

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

The anwser cause i do not understand just plez