Using the power rule for differentiation, the first derivative of

is

and the second derivative is

which makes E the correct choice.
Answer:

Step-by-step explanation:
Since the question implies a constant rate, we can set up the following proportion:

Answer:
the second is bigger the whole part is 7 which is bigger than 2. if the whole parts are different you don't need to compare decimal parts
They didn't distribute the 3 before doing the addition in the second step. They should've added 15 to both sides because 3*5 = 15
Answer:
$22.50
Step-by-step explanation:
$4.50x5=$22.50