How much was Ray's paycheck for working 46 hours? Show your work. Would Ray make more money working 40 hours a week for two weeks or working 32 hours one week and 46 hours but the next? Justify your solution.

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)

What is the value of x in the following equation. -x ^3/2 = -27

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).