A cell phone provider offers a plan that costs $40 per month plus $0.20 per text message sent or received. A comparable plan c
2 answers:
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Answer:
a= -5
b= 1
c= -5
d= -12
That should help
Remember that perimeter is the sum of the lengths of the sides. The way to find the length of the sides is 
where 
is one endpoint of one line, while 
is the other endpoint of the same line. Repeat this formula for each side and add them all together to get your perimeter