Answer:
dy/dx = -1/
Step-by-step explanation:
y = 1/x
dy/dx = d/dx(1/x)
=> dy/dx = d/dx(
)
=> dy/dx = -
=> dy/dx = -1/
to get the inverse of any expression, we start off by doing a quick switcheroo on the variables and then solve for "y".

Y=2x+320
x being the number of years and 320 being the initial population of mice
We are given :
Let's find the percent increase with the help of formula:






