&/01 divided by 3/1 is 7/10
The formula for the growth rate is given by
Now when b is greater than 1 , then it is increasing function
and when b is less than 1 , then it is decreasing function.
Now in the function
here value of b is 0.88 , which is less than 1 , so it is decreasing function
And decay rate is given by
1-r = 0.88
Subtract 1 from both sides
-r = 0.88-1
-r = -0.12
r = 0.12
or r= 12%
It means it is decreasing at a rate of 12%
Hence Option C is correct
C.The price of the boat decreases by 12% every year.
Linda will both water & feed her plants on the same day on the 21st day.
Explanation: find the area of the trapezoid, then find the area of the rectangle, then add both areas to get the total area of the figure.