Sales tax is 7%. If c represents the retail cost of an item, which of the following expressions represent(s) the total cost of the item?
1.c + 0.07 c
2.0.93 c
3.c - 0.07 c
4.0.07 c
5.1.07 c
1.c + 0.07 c
2.0.93 c
3.c - 0.07 c
4.0.07 c
5.1.07 c