(I will mark brainlest, I'm just really confused.) (25 POINTS & BRAINLEST)

The table shows the number of runners, in thousands, who participated in the Center Marathon in each of the given years.

The data follows a quadratic regression model.

Part 1: Estimate the number of runners who participated in the marathon in 2001

Part 2: Predict the year 80,000 runners will compete in the Center Marathon