I'm not too sure about this, but I feel that it's a linear regression. A quadratic one eventually reverses direction, and an exponential one levels off and stops decreasing.
2x + 3 = 1 - 4 (calculate)
2x - 3 = -3 (move the constant to the right)
2x = -3 - 3 (calculate)
2x = -6 (divide both sides)
<em>x = -3</em>
Ratio of girls to boys - 2 : 3 (2+3=5)
Total: 623 students.
623 divided by 5 equals 125.
125 times 2 equals 250.
So, 250 girls are enrolled at Lincoln Middle School.
Answer:

Step-by-step explanation:
Given


First we need to determine the number of gums


Divide 20 among 6 friends


Hence;
Each friend gets 