Respuesta :
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➷ Speed = distance / time
Substitute in your values:
Speed = 720 / 8
Speed = 90
They traveled 90 miles per hour
✽
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
↬ ʜᴀɴɴᴀʜ ♡