Draw skeletal structures for the following:

Draw skeletal structures for the following:

a. 5-ethyl-2-methyloctane.
b. 1,3-dimethylcyclohexane.
c. 2,3,3,4-tetramethylheptane.
d. propylcyclopentane.
e. 2-methyl-4-(1-methylethyl)octane.
f. 2,6-dimethyl-4-(2-methylpropyl)decane