A hole the size of a photograph is cut from the red piece of paper to use in a picture frame what is the area of the piece of red paper after the hole for the photograph has been cut 17 square units 25 square units 39 square units 47 square units

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079

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?