Answer:
Monthly Interest rate = 0.475%
EAR = 5.85%
Explanation:
a.
APR = 5.7%
Monthly Interest rate = APR / n
Monthly Interest rate = 5.7% / 12
Monthly Interest rate = 0.475%
b.
APR = 5.7%
m = 12
EAR = [ ( 1 + (APR / m))^m] - 1
EAR = [( 1 + (0.057 / 12))^12] - 1
EAR = [( 1 + 0.00475 )^12] - 1
EAR = [( 1.00475 )^12] - 1
EAR = 1.0585 - 1
EAR = 0.0585
EAR = 5.85%
True monthly rate of interest is 0.475%
EAR is 5.85%