I need help very fast plz someone help

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

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)