In the busy port of Chennai, India, the number of containers loaded onto ships during a 15-week period is as follows:

1. Develop a linear trend equation to forecast container loadings.

2. Using the equation, forecast the number of containers that will be loaded in weeks 15 and 16.

3. The current loading equipment in the port can handle a loading volume of up to 600 containers. If the loading volume exceeds 600 containers, then the port has to purchase new loading equipment. If the current trend continues, when should the port purchase the new equipment?

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Month 3 4 10 11 12 240 Number of Containers Loaded 260 285 320 545 180 225 380 410 530 550 490