Answer and Explanation:
The computation of the total annual cost for each returns are shown below:
a. For 342 returns
= $424 + $11 × $342
= $424 + $3,762
= $4,186
b. For 446 returns
= $424 + $11 × $446
= $424 + $4,906
= $5,330
c. For 500 returns
= $424 + $11 × $500
= $424 + $5,500
= $5,924
We simply pay the annual fees and then added the added value i.e annual fee multiply with the each returns filed