Freight car loading during an $18$ week period at a port are Week. Number$1.2302.2403.2904.2665.3056.3157.3468.3659.40010.37811.41812.44613.46814.47715.49916.51717.53518.541$A$)$ computer a linear trend line gor frieght car loading $.($ use of excel trendline $.$ With display equation on chart option $,$ is recommended$($ round the final answer to $3$ decimal places$)$ Y$=\_\_\_\_\_\_\_*+\_\_\_\_\_\_\_\_\_$B$)$ use the trend equation to predict loading for weeks $19$ and $20($ round the final answer to $2$ decimal places$)$Loading for week $19\_\_\_\_\_\_\_\_\_$Loading for week $20\_\_\_\_\_\_\_\_$C$)$ The managwr intends to install new equipment when the volume reaches $790$ loading per week $.$ Assuming the current trend continues, the loading volume will reach that level in approximately what week? $($ round the final answer to nearest whole week$)$ Appriximate week to reach level $\_\_\_\_$