Based on the data in the table, which function models the frequency, y, in waves per second, of sound waves with a wavelength of x meters?

y=340/x or D

Asegment in the complex plane has a midpoint at 7 – 2i. if the segment has an endpoint at 11 – 3i, what is the other endpoint?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?