- How many dollars is twenty one pounds of quarters?

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The reaction of lithium, sodium, and potassium with a carbon dioxide fire extinguisher will produce - and -? #1) 1/2r+2(3/4r-1)=1/4r+6
#2) -7(k+9)=9(k-5) -14k
#3) 10p-2(3p-6)=4(3p-6) -8p? Determine all Zeros for the function F(x)= (x^2+2x-8) (x-6)? 1/f=i/u+1/v, find the value of f? Calculate the frequency and energy of electromagnetic radiation with a wavelength of 0.63m. (h=6.63x10^-34 Jxseconds)?

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