I am super lost on this question and what is going on

Landon wallin is an auto mechanic who wishes to start his own business. he will need $4400 to purchase tools and equipment. landon decides to finance the purchase with a 48-month fixed installment loan with an apr of 5.5%. a) determine landon's finance charge. b) determine landon's monthly payment.

The anwser cause i do not understand just plez

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3