Answer:
diagonals are perpendicular......its not true
Step-by-step explanation:
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Answer:
b=45^1/2
Step-by-step explanation:

To calculate percent change:
(difference between original and new)/original * 100
(19-15)/15 * 100 =
4/15 * 100 = 26.7 % increase
Divide the 27 by 4 and that will give you 6.75. Subract the 6.75 from the 27 and theres your answer (20.25) so the sale price is $20.25