jjxxxxx
jjxxxxx
19-10-2017
Mathematics
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choixongdong
choixongdong
19-10-2017
f(x) = 4^x
so when store sells 64
4^x = 64
4^x = 4^3
x = 3
answer
B. Month 3
Answer Link
nat332529
nat332529
19-10-2017
Month 3. When you replace x with 3 to make it 4^3, it means 4*4*4, and u get 64.
Answer Link
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