What number should be subtracted to -2/3 to get -1/6
Pls answer thi

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Graph the equationy= x+3[tex]y = x + 3[/tex]