6,10,16,24,34 find an expression for the nth term in this sequence ​

Easy points boii. read it. ya. fresh

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)

With alll of except for the 2 that i did already