Answer:
See below
Step-by-step explanation:

Answer: C. 70 percent
Step-by-step explanation:
Given, Time for the first unit = 50 minutes
Time for the second unit = 35 minutes
The unit improvement factor learning curve = (The time for the second unit) ÷ (time for the first unit) x 100.
So, The unit improvement factor learning curve = 35÷ 50 × 100 = 70 percent.
Hence, the correct option is "C. 70 percent".
1/2,2/4,3/8 and 6/16 could i plz get a brainly i just need one
Answer:
36 Miles
Step-by-step explanation: 15 + 9 + 12 = 36 miles