- Evaluate a^-2 b^0 for a = -3 and b = -3?

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Does set of real numbers between 0 and 1 just having 1 s and 2 s have a greater cardninality than the set of real numbers? Order from lest to greatest 9/22,0.83,7/8,0.4,44/44? Please help! There's a page 1 and 2. Or guidance Please!? Which ions will oxidize aluminum? Li+, Ca2+, Ag+, Sn2+ (must be at least one of these)? A 0.5376 g sample of an unknown compound is found to contain 0.3044 g of carbonate. Could this compound be calcium carbonate? pls help?