How do i do this? i don't understand the question. i'll write it out since i can't upload a pic for some reason.

for each of the situations, state the method you would use to solve ax^2+bx+c=0. explain your choice
a. b^2-4ac> 0
b. b^2-4ac=0
c. b^2-4ac< 0

Answer pls man im trying to get out of summer school

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o