Answer:
<em>The number of boys enrolled was 150. </em>
Step-by-step explanation:
Suppose, the number of boys enrolled was 
As there were 200 more girls than boys, so the number of girls 
Given that, the ratio of boys to girls was 3 : 7 , so the equation will be........

So, the number of boys enrolled was 150.
Thousands place, pretty sure. hope this helpss
The most common way it helps is because: when you lay them out you know/ see what you are dividing,
For question 5, the expression would be p - 2. You can read that he is starting with a total of P number of picture frames. If he sells to, you represent this by subtracting 2 from p.
For question 6, the simplified expression is 3x + 19. You will get this by understanding that there are 3 groups of everything in the parentheses. You would read this expression as 4 and 3 groups of 5 and 3 groups of x (4+15+3x). Combine the 4 and 15 to get 19. Rewrite it so the part with the variable is first.
Please see the attached picture.
(0, -10/7) is your y intercept.
the b of an equation is always your y intercept