You and your friends order a meal for $63.64. Calculate the amount you should leave for a 20% tip. Show you
1 answer:
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We can verify this with the graph
(-6, 3) NO
(-3, 3) NO
(-5, 0) NO
(-4, 2) YES
(0,0) NO
(-6, 6) YES
(-3, -6) NO
(-4.0) YES
the area where the solutions are in the yellow area
