32.5 percent of what number is 12.48? The answer
is 100
Question 1:
For this case we have the following functions:

We must find
):
By definition we have to:


We substitute
:

So, we have that 
Answer:

Question 2:
For this case we have the following functions:

We must find
:
By definition we have to:

We substitute
:

Answer:

Question 3:
For this case we must find the inverse of the following function:

To do this, we follow the steps below:
We change y for
:

We exchange variables:

We clear the value of the variable "y":

We change y for
:

Answer:

Answer:
35/100
Step-by-step explanation:
P(green or black) = 3/20 + 4/20 = 7/20
7/20 = 35/100
Answer:
3/8
Step-by-step explanation:
convert decimal to fraction
0.375=375=1000
then simplify by dividing