You have signed a contract to build a garage for the Simpsons. You will receive a $500 bonus for completing the project within 30 working days. The contract also contains a penalty clause in which you will lose $100 for each day the project takes longer than 30 working days.

Given the information below, complete the forward and backward pass, compute activity slack, and identify the critical activities. \begin{tabular}{clcc} ID & Description & Predecessor & Time (days) \\ \hline A & Prepare site & None & 6 \\ B & Pour foundation & A & 2 \\ C & Erect frame & B & 5 \\ D & Roof & C & 2 \\ E & Windows & C & 1 \\ F & Doors & C & 5 \\ G & Electrical & C & 1 \\ H & Rough-in frame & D, E, F, G & 4 \\ I & Door opener & F, G & 2 \\ J & Paint & H, I & 2 \\ K & Cleanup & J & 5 \\ \hline & & & \end{tabular} Answer is not complete. \begin{tabular}{|l|l|l|} \hline & & \\ \hline The project will take & 23 & days. \\ \hline The critical activities are & A, B, C, F,H,J,K & \\ \hline The early start on Activity D is & & days. \\ \hline The late start on Activity E is & & days. \\ \hline The slack on Activity E is & & days. \\ \hline The slack on Activity F is & & days. \\ \hline \end{tabular}