An area has a total of 5,049 seats. the first row had 305 seats, the next row has 303 seats, the following row has 301 seats, and so forth until the last row has 1 seat remaining. how many rows are there in the arena?

Convert the cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation. choices: r4 = -4r2 r2 = 4cos2θ r2 = 4sin2θ

Part of the total score for each program is the sum of five program component scores. on the free program, the sum of these five program component scores is multiplied by a factor of 2.0. yuzuru hanyu, of japan, earned scores of 9.07, 8.96, 8.89, 9.21, and 9.36 for the program components portion of his free program. how many total points did he receive for this portion?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.