$849-20%=$679
$679+6%(sales tax)=$719
$719 is the total cost of the tv
Answer:
B. (x+4)(x+i)(x-i)
Step-by-step explanation:
Let 
We can factor this polynomial by grouping:

We factor further to obtain:


We apply difference of two squares to get:

I think it's D + .2 = ? i'm not sure but it might be something like that