R 4 5 7 July 8, 2019 16 32 64 128 R 5 4 7 answer R 5 4 7 2 Calculate r 4/r = 5/7 R 4 - 5 or 2r 7 3 Solve for r 5 4 7 2 r 1 4 r 5 7 R )- 5 7 difluorochroman 4 ol R 5 4 r 2 3 7 7 2r 4 r 5 R 5 3r 7r 4
