Asap ptswhat is the solution to this system of equations?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

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)

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?