30 miles per 1 gallon , all what u need to do is divide 600 by 20 so you can get the answer
General Idea:
The exponential function will be of the form
.
When b>1, the function indicates the exponential growth.
When 0<b<1, the function indicates the exponential decay.
Applying the concept:
We are given the graph of 
, here b = 2.
The question ask the characteristic of the function when b is in the interval 
. The attached figure shows few graphs of exponential function whose b value is less than 2 and greater than 1. We can notice that graph increases at slower rate, that is change in y with respect to change in x is getting slower as we reduce the values of b less than 2 and greater than 1.
Conclusion:
"The graph will increase at a slower rate"
Answer: 13 feet
Step-by-step explanation: You are given that the perimeter, P, of the rectangle is 42 meters (i.e., P = 42). Also, the length, L, of the rectangle is 3 meters less than 2 times the width, W (i.e., L = 2W - 3).
Recall that the perimeter, P, of a rectangle is given by the following formula:
P = 2W + 2L
Substituting 2W - 3 for L, we arrive at the following:
P = 2W + 2(2W - 3)
P = 2W + 2·2W + 2·-3
P = 2W + 4W - 6
P = 6W - 6
Since we were given that P = 42, then
42 = 6W - 6
42 + 6 = 6W - 6 + 6
48 = 6W
48/6 = 6W/6
8 = W
Therefore, the width of the rectangle is 8 meters. Use this value to solve for the length:
L = 2W - 3
L = 2·8 - 3
L = 16 - 3
L = 13
