Answer:
a. 1.5
b 1.6 or 1.7
c. 90
Explanation:
a. the initial height is 1.5 m (x=0)
b. the maximum height occurs at x = 20, probably 1.6 or 1.7 m
c. the arrows reaches 90 m when it lands (y=0)
hope this helps.
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