Answer:
38 mpg
Step-by-step explanation:
Initial efficiency = 39 mpg
Initial speed = 40 mph
Final speed = 50 mph
The efficiency drop between 40 mph and 50 mph is given by:

The total efficiency drop from 40 to 50 mph is:

Therefore, the efficiency at 50 mph is:

Answer:
1.5
Step-by-step explanation:
Joshua's rule was to add 2/6 or 1/4 (same thing) to the previous number. The missing number in Joshua's sequence is 1 1/6.
Answer:
no solution
Step-by-step explanation:
the given equation have no solution from the options