4.(answer) 7. 20
6.(answer) 10.80
8.(answer) 14.50
Answer:
the answer is $33.04
Step-by-step explanation:
since the total cost was $165.20 and we need to find the cost of one video game we will divide the the total ($165.20) with 5 video games and you will get $33.04


Now before taking the inverse tangent of both sides, recall that

where

is any integer. This means that when taking the inverse tangent of

, instead of just

, we would end up with

So after doing so in the equation above, we're left with

As

can be any integer, including negative integers, we can simply write