Steffi Derr expects to invest $$24,000$ annually that will earn $7\%.$ How many annual investments must Derr make to accumulate $$378,806$ on the date of the last investment? $($PV of $$1,FV$ of $$1,$PVA of $$1,$ and FVA of $$1)$

Note: Use appropriate factor$($s$)$ from the tables provided. Round "Table Factor" to $4$ decimal places.

$\backslash$table$[[$Future Value,,Annuity Payment,Table Factor,Annual Investments$],[,,,,$investments$]]$