Explanation:
company a = 120 + 0.3 × miles
company b = 50 + 0.4 × miles
120 + 0.3 m = 50 + 0.4 m
120 - 50 = 0.1 m
70 = 0.1 m
m = 700 miles
I believe it is a metaphor as falling from cloud 9 was usually used in older movies to express that they had fallen in love
Use care with secondary clauses. Use active voice. Use powerful verbs. Follow grammar rules