True and False Questions (no need of explanation). Please answer all four, otherwise would have to put thumbs down. Plea

[answerhappygod]

True and False Questions (no need of explanation). Please answer
all four, otherwise would have to put thumbs down. Please help me
out please...
27. Given same conditions, the mortgage interest rate
decreases as the lender can recover more money when the borrower
defaults
28. Consider the standard fully amortizing constant
payment fixed rate mortgage loan. When we partially differentiate
the periodic payment with respect to the loan maturity, we get the
negative (or minus) value.
29. According to Di Maggio et al. (2017), a decrease in
the market interest rate increases expenditure in durable
goods.
30. Given the annual interest rate, the effective annual
yield increases as compounding interval decreases (or more
compounding periods per year).