Answer:
a = 
Step-by-step explanation:
4(2a + 2) = 8(2 - 3a)
Distribute.
8a + 4 = 16 - 24a
Add 24a to each side.
32a + 4 = 16
Subtract 4 from each side.
32a = 12
Divide 32 from each side.
a = 
Eleven adult chaperones will be needed
Uh... 3 1/2 jail? I don't know.
Answer:
The price of a 2,000 square foot home is 
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
Let
x -----> the total area of the house in square feet
y -----> the price of the house
we have
The point (1,500,300,000)
Find the constant of proportionality k

substitute

The direct equation is equal to

so
For 
Find the value of y
substitute the value of x in the equation


90 + 20x + 10x = 180
30x = 90
x = 3