Please help with number 12 !!!!!!!!! NEED IT BADLY

Answer:
see below PLEASE GIVE BRAINLIEST
Step-by-step explanation:
9 ÷ 2 = 4.5
4.5 hours = 40mph 40 x 4.5 = 180 miles traveled
4.5 hours = 50 mph 50 x 4.5 = 225 miles traveled
180 + 225 = 405 miles - 5 = 400 miles
So, the train traveled 220 miles while going 50 mph.