My question is: When Mark bought his first tv it was was 24 inches wide and 16 inches tall. It cost $672. His new tv is 48 inches wide and 32 inches tall and costs $1152. How much more expensive as measure by cost per square inch, was his first TV compared to his newest TV? Your thoughts:
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His first TV was 384 square inches because 24 x 16 = 384. His first TV cost $1.75 per square inch because 672 / 384 = 1.75. His new TV is 1,536 square inches. It costs $.5 per square inch because 1152 / 1,536 = .5. His old TV cost $1 more per square inch because 1.75 - .75 = 1. The final answer: 1.
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