If a wholesale price of an item is $250 and the markup is 25%. how much will you pay for the item. Pls show your work if u answer

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)

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6