So for every two girls, there's four boys. There are twice as many boys than girls, so the number of girls • 2 = your answer.
51 • 2 = 102
The answer is x is less than 8
He is incorrect because each number is in a different place and those different places are worth more or less than the other places
Using the quadratic equation we get:

Factoring out 2 we get

Factoring out the imaginary number:

So b.
Answer:
240
Step-by-step explanation:
20/0.25 = 80
80 x 3 = 240