Hello i need these asap if you only know one then dont answer.

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%