Solve using a proportion. Round your answer to the nearest hundredth when necessary.A 30-ounce jar of apple sauce costs $2.40. A 12-ounce jar of the same brand of applesauce costs $1.20. Which size costs less per ounce and by how much?
A. The larger size costs $.03 less per ounce than the smaller size.
B. The smaller size costs $.02 less per ounce than the larger size.
C. The larger size costs $.02 less per ounce than the smaller size.
D. They both cost the same per ounce.
Answer: C
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and the plane y = -9 at the point 
A. 2
B. - 
C. 
D. 0
Between the pair of numbers, insert the appropriate sign: <, =, or >.2
2
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A. h = 
B. r2 = kh
C. h = kr2
D. h = 
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Use the formulas to find the ratio of the surface area of the hemisphere to the surface area of the cone.
A. 
B. 
C. 
D. 