If I assume that p is supposed to be r, then:
r = 12.5
or
r = 25/2 is improper or 12 & 1/2 is proper
we know that
The exponential function is of the form
where
a is any value greater than 
In General:
It is always greater than , and never crosses the x-axis
It always intersects the y-axis at 
Its Domain is the Real Numbers
Its Range is the Positive Real Numbers
Examples
Let
1) For 
2) For 
3) For 
4) For 
therefore
the answer is the option
D.) exponential
Answer:
For f(x) to be differentiable at 2, k = 5.
Step-by-step explanation:
For f(x) to be differentiable at x = 2, f(x) has to be continuous at 2.
For f(x) to be continuous at 2, the limit of f(2 – h) = f(2) = f(2 + h) as h tends to 0.
Now,
f(2 – h) = 2(2 – h) + 1 = 4 – 2h + 1 = 5 – 2h.
As h tends to 0, lim (5 – 2h) = 5
Also
f(2 + h) = 3(2 + h) – 1 = 6 + 3h – 1 = 5 + 3h
As h tends to 0, lim (5 + 3h) = 5.
So, for f(2) to be continuous k = 5
It is $69 because if every time you withdraw money you get $3 and you took $20 out 3 times that 20x3 is 60 and then plus $3x3 is nine add it all together it is $69
