A rectangular box having no top is three times as long as it is wide, and two times as tall as it is wide. If its volume is 750, what is its surface area?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details

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?