For number one answer is 45 180-45-90=45 Number 2 answer is 80
180-50-50=80
For number three answer is 22
180-70-50=60 180-60-98=22
For number four the answer is 70
180-40-70=70
You put x-5 equal to 0 and then add 5 to the other side
Work:
X-5=0
X=5
$9147 x 12 =190,764
12 is how many months there is in a year