$($Compound annuity$)$ What is the accumulated sum of each of the following streams of payments?

a$.$ What is the accumulated sum of $$490$ a year for $8$ years compounded annually at $11$ percent?

b$.$ $$112$ a year for $6$ years compounded annually at $8$ percent?

c$.$ $$35$ a year for $13$ years compounded annually at $13$ percent?

d$.$ $$28$ a year for $6$ years compounded annually at $6$ percent?

$($Round to the nearest cent.$)$