#1 is -32
#2 is -11
#3 is -5
#4 is 6
The answer is B) G = 2E +3
For starters his will be less accurate and be man-made
So, if he wants to make

more concrete, he should use

more water!
so he should use 1 of the planed water plus

of the planned water, that is

or

of what the formula says.
so we multiply this by what the formula says:

so he has to use 2/3 gal of water
From x=1 to x=5
x=1 is starting time
x=time
y=mx+b
m=slope
b=yintercept
slope=(y2-y1)/(x2-x1)
for points (x1,y1) and (x2,y2)
(1,52000) and (5,116000)
slope=(116000-52000)/(5-1)=64000/4=16000
y=16000x+b
find b
(1,52000)
52000=16000(1)+b
52000=16000+b
minus 16000 from both sides
36000=b
the equation is
y=16000x+36000
at 12 years, x=12
y=16000(x)+36000
y=16000(12)+36000
y=192000+36000
y=228000
sales at year 12 is $228,000