For this case we have a function of the form:

Where,
A: initial amount
b: decrease rate
x: time in days
Substituting values we have:

Therefore, the graph of the function is a decreasing exponential function in the first quadrant and that has an initial value of 40.
Answer:
graph of exponential function going from left to right in quadrant 1 through the point 0, 40 and approaching the x axis
A fraction that is equivalent to 1/4 is 25/100
Answer:
40%
Step-by-step explanation:
because convert the fraction 16/40 and the answer is 40%
._.
38 , because since its 90 degrees at exact, your subtract 90 from 52 and you would get 38 for your x value
Answer:
About 11.62 by 11.62
A square had equal sides so you find the square root of 135 and that is rounded to 11.62.
So the perimeter would be about 46. But 46.48 exactly.