\begin{tabular}{llr} & Cash invested by owner & $4,500 \\ \hline Cash paid for Printer, paper, ink, stationery,etc. & $800 \\ \hline d & Supplies office (coffee maker, oven,etc,) purchased on credit & $950 \\ \hline e & Small Project completed on account payable in Cash & $15,550 \\ \hline f & Cark completed on account, payable on credit & $600 \\ \hline g & Cash paid for new newspaper advertising expenses & $2,000 \\ h. & Paid on credit for Hydro Quebec bill & $250 \\ \hline i & Paid the salary of engineers and Technicians by cheque & $500 \\ \hline j & Sales revenue for products and services of installations in Cast & $12,000 \\ \hline k & Sales revenue for products and services of installations on crer & $17,000 \\ \hline I & Collected the amount owed from the customer in cash & $10,000 \\ \hline \end{tabular}