2+5-71
7-71
-64
answer is -64
Answer:13.6 I believe
Step-by-step explanation:
Well all you have to do is add the number Teresa has by itself or multiply it be 2. Because Teresa needs twice as many as Samuel so all you have to do is multiply it by 2.
The perimeter is 44.5
The area is 72.25
Volume is length times width times height