The edges on Nellie's snowboard are chipped and dented from riding over rocks, so Nellie wants to buy a new one. She can't afford the board she wants, so she opens a hot chocolate stand near her house. Nellie figures out how many cups of hot chocolate she must sell to have enough money for the snowboard. One cold, snowy Saturday, Nellie sells 48 cups of hot chocolate. Now, she needs to sell 52 more cups to buy the snowboard.
Which equation can you use to find the total number of cups \( c \) Nellie must sell to buy the snowboard?
Solve this equation for \( c \) to find the total number of cups Nellie must sell to buy the snowboard. \( \square \)
cups
\[
\begin{array}{l}
\frac{c}{48}=52 \\
48 c=52 \\
c-48=52 \\
c+48=52
\end{array}
\]