Express the sum using summation notation. Use the lower limit of summation given and k for the index of summation.
1) 5+7+9+11+cdots+27= sum_(k=1)ⁿ (2K⁺3)
2) 5+7+9+11+cdots+27= sum_(k=1)ⁿ (2K⁺5)
3) 5+7+9+11+cdots+27= sum_(k=1)ⁿ (2K⁺7)
4) 5+7+9+11+cdots+27= sum_(k=1)ⁿ (2K⁺9)