Help me PLEASE! What is the sum of 1/2 + 1/4?

1) 2/8

2) 2/6

3) 4/8

4) 6/8

dont guess pls this is due in 20 minutes

Which of the following could be the graph of the equation y = -2x + 5

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)

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12