0.3x+5 is an expression. If we had an equation, then we would have solved for x. It looks like you need to translate this into a words. You can say "5 more than 30 percent of a number."
Answer:
The average speed is 36.67 m/h
Step-by-step explanation:
100/50 = 2
120/30 = 4
Total time = 6
Total distance = 220 miles
220/6 = 36.67
= 1.608 ft off the ground.