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2. Every day you collect 4 pennies and keep them in a jar. So the first day you have 4 pennies, the second day you have 8 pennies, the third day you have 12 pennies, etc. How many do you have on the 15th day? (1 point) 75 19 15 60

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plug in n = 15 into a(n) = 4 + 4(n-1) to get your answer
4+ 4(14) =15(4)= 60
4. To which set of numbers does the number belong? (1 point) square root 51 rational numbers irrational numbers integers natural numbers

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Other answers:

can someone help me
is 51 a perfect square?
it is? so there's some integer that you can square to get 51?
ex: 100 is a perfect square since 10^2 = 100
4 is a perfect square because 2^2 = 2*2 = 4

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