Answer:
B
Step-by-step explanation:
Answer: I think C
..............................
Answer:
There are 50 boys
Step-by-step explanation:
girls to boys - 2:4
so 25x2=50
Attached a solution and showed work.
The mistake was in step one when she added the 9 to both sides
x^2 + 8x - 9 = 0
__ + __ = 8 (b)
__ • __ = -9 (a•c)
blanks = -1 and 9
(x - 1)(x + 9)
Solve for x in each one
x = 1 or -9