Which set of segment lengths could be used to construct a triangle? a) 3, 7, 12 b) 5, 7, 17 c) 5, 3, 12 d) 12, 6, 10

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Is there an x intercept in the equation 60*1.15^x

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?