Xm=(2+2)/2=2
Ym=(1+4)/2=2.5
(2,2.5)
Answer:
$10
Step-by-step explanation
Liam has $10 left for himself. Simply divide $240 by the 24 kids and you get $10 as your total. Thsi is what I could get as the answer since the price of the gift was'nt included.
The answer for your questions is -5

This happens whenever

or

. More generally,

whenever you start with one of these angles and add any multiple of

, so the general solution would be

, where

is any integer. (Notice that when

, you end up with

.)