The sum of two rational numbers is -8 1/4. If one of the numbers is -5 2/3, find the other number.

What is the range of the data below? .8090100

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

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)