Rose and Angel are caterers. Both Rose and Angel charge a flat fee plus a fee per guest. Rose charges a flat fee of $50 plus $12 per guest. The table shows how much Angel charges for different numbers of guests.
Angel's Catering Charges
Number of Guests Charge (S)
10 people = $180
15 people = $255
25 people = $405
30 people = $480
Part A
Who charges the greater flat fee?
A. Rose
B. Angel
Part B
What is the difference in total charges between Angel and Rose for a party that includes 50 guests?

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