Pls help ASAP Anna wants to make 30 ml of a 60% salt solution by mixing together a 72% salt solution and a 54% salt solution. How much of each solution must she use?

One positive number is 9 more than twice another. if their product is 95, find the numbers

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

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?