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what is the value of the expression for the given values of variables? 2r+5(s+6) - 1 for r=3 and s =-9
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2(3)+5(-9+6)
and c3- d over 8 for c = 1 over 4 and d = 1 i think its 1/4^3- 1/8?
c^3
1-1/8
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