Michael made 2 i didn't to call necklaces each having beers with a pendant. the total cost of the beeves in pendants for both necklaces was $13.60 . if the beads cost $3.10 for each necklace how much did each pendant cost?

How do i do this activity, is appreciated

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)

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?