Answer:
6
Step-by-step explanation:
subtract 3 from each side
<h3>
Answer: 580 square cm</h3>
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Work Shown:
A = area of smaller rectangle
A = length*width
A = 35*22
A = 770
B = area of larger rectangle
B = length*width
B = 45*30
B = 1350
C = area of the border only
C = B - A
C = 1350-770
C = 580 square cm
Answer: 4/15
Step-by-step explanation: i would wait for someone to answer in case im wrong