Question
A store was having promotion for files. For every 2 files bought, 1 file would be given free. Each file costs $2. Lynn paid $20 for some files. How many files did she get altogether?
4 m

Click button first when a symbol is required. X

A store was having promotion for files. For every 2 files bought, 1 file would be given free. Each file costs $2. Lynn paid $20 for some files. How many files did she get altogether?