The restaurant pizza by the ? offers six sizes: personal (8 in.), small (10 in.), medium (12 in.), large (14 in.), extra large (16 in.), n-zilla (24 in.) ‘
8 inches = $6.99
10 inches = $9.49
12 inches = $10.99
14 inches = $11.79
16 inches = $13.99
24 inches = $25.99
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Part A: What is the rate of change in cost when moving from a medium pizza to a n-zilla?
a - $0.79
b - $1.25
c - $1.49
d - $1.99
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Part B: What does this value mean in the context of this problem?