Will give 5 stars if answered with an explanation too. a phone that normally costs $120 is on sale for $108. by what percent was the price marked down?

Aline passes through 3,7 and 6,9 what equation represents the line

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?