What is the apparent solution to this system of equations? (Write your answer as an ordered pair)

(FIRST TO ANSWER GETS BRAINLIEST)

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)

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)

Adie is rolled, what is the probability of getting an even number or a 3? write the solution too