Answer:
Step-by-step explanation:
-We can use the exponential decay function to estimate the size after 13 years:
Where:
is the size after t years, t is the time, r is the rate of decay and 
the original size.
#We substitute and calculate as:
Hence, the forest covers after 13 years.
I would say direct because the more gallons of gasoline used, the bigger the cost.
Answer:
0
Step-by-step explanation:
0+0=0
X would equal 60 degrees because the degree of the top left area is equal to the degree of the bottom right. So the equation would be x+20=80 so you would solve to get x=60
8 x 4 x 2 = 64
Therefore the volume of the pond is equal to 64m³
