X^2 + 4x = 0
x^2 + 4x + 4 = 0 + 4
(x + 2)^2 = 4
Answer:
5.42
(I may be wrong)
Step-by-step explanation:
4 floors with 6 class rooms each = 6*4 = 24 total class rooms.
24 class rooms x 34 students in each one = 816 total students.
2 is the answer because 2=2 but 2 doesn’t =0.
Ok so you take 13 and multiply it by 10 then divide that product by 2.(13x10)/2= 65 (D.)