Answer:

Step-by-step explanation:
If the length of the square side is a units, then the area of the square is

In your case, the side length is

then the area is

Answer:
y=-1/3x+1
Step-by-step explanation:
(picture explains)
Answer:
y = 0.35x + 2.5
Step-by-step explanation:
The average cost in 1990 is <span>$12,841.</span>
Answer:
1,3,4
Step-by-step explanation:
all the others were wrong