2/5 of the students is equivalent to 394 students. The total number of students involved is thus 394*5/2.
Using the distance formula:
Distance = √((x2-x1)^2 + (y2-y1)^2)
Distance = √((5-2)^2 + (-8 - -4)^2
Distance = √(3^2 + -4^2)
Distance = √(9 +16)
Distance = √25
Distance = 5
3 goals because she scored seven and then it went up to ten so 10 - 7 is 3
Answer: Choice A) Factoring
Factoring is the best method since we can factor it to (x-3)(x-2) and then use the zero product property.