(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

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Which expression is equivalent to 3^3 + 2^2?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?