Answer: 
Step-by-step explanation:
Given
Shopkeeper allows 15% discount on the marked price and still manages a profit of 7%
Suppose the marked price is 
So, the selling price is 
Suppose the cost price is 

So, the percentage the shopkeeper marked his goods above cost price

Answer:
B on edge
Step-by-step explanation:
At least 67 inches, but at most 73 inches
The answer 300 seconds/5 minutes
A = 1/2 b h where b = 3.4 cm and h = 8 cm
A = 1/2 (3.4)(8)
A = 13.6 cm^2
Answer: 13.6 cm^2