Which equation is true when the value of x is -12? A 20 - 2x = 4
B x + 3 = 6
C 0.5x – 3 = 3
D 22 4x = 25
plz help again​

Wilma worker has a $90,000 insurance policy for which she pays $1,200 a year. to compare the cash value of the policy to investing the same amount of money at 6%, she performs the following calculations:

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )