How do you find the area of a triangle

Solve 2x+y=3 x+y=5 in substitution method

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)

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t