You are trying to decide between two mobile phone carriers. Carrier A requires you to pay $$200$ for the phone and then

monthly charges of $$58$ for $24$ months. Carrier B wants you to pay $$115$ for the phone and monthly charges of $$68$ for

$12$ months. Assume you will keep replacing the phone after your contract expires. Your cost of capital is $3\mathrm{.}7\%$ APR,

compounded monthly. Based on cost alone, which carrier should you choose?

The EAA for plan $A$ is $$,.($Round to the nearest cent.$)$