$($Compound interest$)$ To what amount will the following investments accumulate?

a$.$ $$5,200$ invested for $10$ years at $11$ percent compounded annually

b$.$ $$8,200$ invested for $7$ years at $7$ percent compounded annually

c$.$ $$800$ invested for $13$ years at $11$ percent compounded annually

d$.$ $$23,000$ invested for $6$ years at $4$ percent compounded annually