Answer:
Finance charge = $5.258
New Balance = $265.758
Step-by-step explanation:
By previous balance method,
Finance charge = Previous balance×Periodic percentage rate
Periodic percentage rate = APR/12 = 
= 0.015
Finance charge = 350×0.015
= $5.258
Also, new balance = Previous balance+New purchases+Finance charge-Payments/credits
New balance = 350.55+459.95+5.258-150
= $265.758