Can I please get some help ?

Answer:
[tex]8.0 \: or \: maybe \: 8[/tex]
Step-by-step explanation:
given
[tex]s = 16 {t}^{2} [/tex]
the given height is 1031 ft, thus,
[tex]1031 = 16 {t}^{2} [/tex]
now solving for t,
[tex]t = \sqrt{ \frac{1031}{16} } [/tex]
t~8.027 seconds