What is the equation? I cannot solve for x if I do not have an equation to solve for.
Answer:
9/10
Step-by-step explanation:
Very simple, Keep It, Change It, Flip it
Do 3/4 X 6/5 and you should get your answer
First, plot the y-intercept which is 150. So, plot the point (0,150).
Then, just input values of x into the equation.
Use the value of x you input and y value you got after solving into (x,y) and plot the point.
Answer:

The value of r is 0.451
The percentage decrease is about 45.1%
Step-by-step explanation:
The given exponential function is 
Using the exponent rule, 

Now the value of 
Thus, we can rewrite the function as

Therefore, the function in form 

The value of r is 0.451
The percentage decrease is about 0.451 ×100 = 45.1%