We have that 3 pencils cost $0.35, and 2 dozen pencils are 24 pencils, then we divide by 3 to know how many 3-pencils combo we can get:

therefore, 2 dozen pencils would cost $2.8
Answer:
5/1
Step-by-step explanation:
3.75 + 2.25 = 5
5 = 5/1
Answer:
575.8 cubic cm
Step-by-step explanation:
V(cone) = 1/3· π · r² · h
V = 1/3 · π · 25 · 12
V = 4(25)π or 100π = 314
V(half-sphere) = (4/3 · π r³)/2
V = (4/3π · 125) = 261.8