C. 4.9a + 6.55b =27.95
Answer:
$481.25
Step-by-step explanation:
The number of transactions is 175.
The fee per transaction is $2.75.
The total fees is calculated as:
Number of transactions × Fee per transaction
175 × $2.75
y=-3x-12
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B the mean increases by 6.8
X would be equal to 1