Step-by-step explanation:
Option D is the correct answer
Because if the blouse is of 8 dollars then 4 blouses = 32 and skirt = 12 so 3 skirts = 36
36 + 32 = 68
Susan bought 6 blouses = 8 x 6 = 48
3 skirts = 12 x 3 = 36
48 + 36 = 84
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".