The inches of rainfall on Mount Wai'ale'ale on Kauai in Hawaii is represented by the to the amount of
rainfall from year to year.

calculate how much rainfall there was in year 4 and year 9. Pls EXPLAIN ALL WORK AND EXPLAIN EACH STEP

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)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Solve the equation by completing the square. x^2+2x=17