Find the area of a triangle whose base is 23 inches and whose height is 28. write your answer as a decimal

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3