How many significant figures will there be in the answer to the following problem? you do not have to solve the problem. 66.322-13.7455=

if you was gonna solve for a, a is a   < -12

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

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