A $15 tip was 20%, so
You are walking away from home at a constant velocity of 5 km per hour. The first landmark you see is your favorite fountain whi
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f(a + 2)= 3a +
substitute x = a + 2 into f(x)
f(a + 2) = 3(a + 2) +
= 3a + 6 + = 3a +