2 1/2 * 3
5/2 * 3/1
= 15/2
15/2 - 11 3/8
15/2 - 91/8
91/8 - 60/8
= 31/8 = 7 7/8
answer=7 7/8
............................
X+7 all over 3
Just distribute.
Answer:
you would just 4.8 x how many years
Step-by-step explanation:

First compute the first-order partial derivatives and find the critical points.


Both first order derivatives vanish at

.
Computing the Hessian, we get

We have

, which means

is an extremum of

. Since

, this extremum is a local maximum of

with a value of 21.