3.6/12=0.3
each pen costs 0.3 cents
Answer:
18.4 km^2
Step-by-step explanation:
Surface area of a square pyramid = A=a²+2a√ h²
a = side length
h = slant height
3² + 2(3) x√ (9/4) x 3²
I think D because it seems the most reasonable