D is a function because there are no repeated x values
for example b is not a function because we have (0,-7) and (0,-9)
We have been given that an employee shreds 341 pages in 11 minutes of work.
First of all we will divide 341 by 11 to find number of pages shred by employee in one minute.

Now let us multiply 31 by 20 to find number of pages shred by employee in 20 minutes.

Therefore, employee will shred 620 pages in 20 minutes.
Answer: power of a power
Step-by-step explanation:
in the expression (x^4)^9, 4 and 9 are powers. 9 is the power of x^4, so you have to multiply 4 by 9 to get x^36. this means it's a power of a power
Answer:

Step-by-step explanation:
The formula of a volume of a cone:

r - radius
H - height
We have
r = (7 : 2) in = 3.5 in
H = 4 in
Substitute:

