Answer:
The system of equations is

Step-by-step explanation:
Let
x -----> the number of years since 2010
y ---> the total members
we know that
The linear equation in slope intercept form is equal to

where
m is the slope or unit rate
b is the y-intercept or initial value
In this problem
<em>swim team</em>
The slope is equal to

The y-intercept is equal to

substitute
----> equation A
<em>chorus team</em>
The slope is equal to

The y-intercept is equal to

substitute
----> equation B
Multiply l x w x h for answer
Answer:
24 interest after 4 years
Step-by-step explanation:
I just took 400 and multiplied it to 1.5%(.015) to get 6 and then multiplied that to 4 to get 24 and you could it if you want. Ask if you have a question.