can u please solve these 3 questions

Base payer g vann POV, Ten years, interest Rate: 7.5% per year. Question 3: Given the following information about a fully amortizing loan, calculate the lender's yield. Loan amount: $166,950, Term: 30 years, Interest rate: 8 %, Monthly Payment: $1,225.00, Discount points: 2 Question 4: You have taken out a $300,000, 5/1 ARM. The initial rate of 5.4% (annual) is locked in for 5 years. Calculate the payment after recasting the loan (ie, after the reset) assuming the interest rate after the initial lock period is 8.0%. (Note: the term for this mortgage loan is 30 years) Question 5: Suppose you have taken out a $125,000 fully-amortizing fixed rate mortgage loan that has a term of 15 years and an interest rate of 6%. After your first mortgage payment, how much of the original loan balance is remaining