The Adams family eats dinner, and the bill is $40. The family leaves a 20% tip. How much did the Adams family pay for the meal?
2 answers:
You might be interested in
(a)
we can see that
curve is moving upward from t=0 to t=4
so, this is increasing interval.........Answer
(b)
we can see that
curve is moving upward from t=15 to t=18
so, this is increasing interval.........Answer
(c)
we can see that
curve is moving downward from t=4 to t=15
so, this is decreasing interval.........Answer