Draw and name all isomers of C7H16

Names are below and I will draw them a coulple of different ways.

1) heptane 2) 2-methylhexane 3) 3-methylhexane 4) 2,2-dimethylpentane 5) 2,3-dimethylpentane

6) 2,4-dimethylpentane 7) 3,3-dimethylpentane 8) 3-ethylpentane 9) 2,2,3-trimethylbutane

1) CH3CH2CH2CH2CH2CH2CH3 2) CH3CHCH2CH2CH2CH3 3) CH3CH2CHCH2CH2CH3

                                                                  CH3                                               CH3

           CH3                             CH3                             CH3                                     CH3

4) CH3CCH2CH2CH3 5) CH3CHCHCH2CH3 6) CH3CHCH2CHCH3 7) CH3CH2CCH2CH3

            CH3                                   CH3                                     CH3                         CH3

                                                 CH3

8) CH3CH2CHCH2CH3 9) CH3CCHCH3

                  CH2                      CH3 CH3

                   CH3