Soloman pays a flat $10 fee and $0.25 per text message. which of the following is the correct linear model to fit this data?
number of text messages (t) 8, 16, 20, 72
bill amount (b) $12, $14, $25, $28

a. b=10t+0.25
b. b=8t+12
c. b=12t-8
d. b= 0.25t+10

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