zintec company has annual sales of $7000000$ of which $90\%$ are on credit$($i$.$e sold on account receivable the company had $650000$ in account receivable.

required$($a$)$ calculate the average daily sales and $($ii$)$ the average collection period.

required $($b$)$ the company has a policy to collect bills in $30$ days how it is performing against their policy$/$

required $($c$)$ using their $30$ day collection policy what would their averge account receivable be$?$