Answer:

Step-by-step explanation:
51 / 13 = 3.9231 = 3
51 - (13 x 3) = 12

The opposite sides are supplementary
43+x=180
X=137
Was increased by 1 inch, the new measure of each side would be 4 inches.
Answer:
14$
Step-by-step explanation:
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B E D M A S MEANS BRACKETS EXPONENTS DIVISION MULTIPLICATION ADDITION AND SUBTRACTION