Sarah wrote the number 13,285. Caryn wrote a 5 digit number that has only one 3 in it. The 3 in Caryn's number is worth 10 times as much as the 3 in Sarah's number. What are 3 different numbers Caryn could have written?

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)

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Write as a product: ac^2–ad+c^3–cd–bc^2+bd