Marta Communications, Inc. has provided incomplete financial statements for the month ended March $31.$The Controller has asked you to help calculate the missing amounts in the incomplete financial statements.Here are some tips for using Excel: Cell Reference: Allows you to refer to data from another cell in the worksheet. If you entered $"=$B$5"$ into a blank cell, the formula would output the value from cell B$5.$ Basic Math Functions: Allow you to use the basic math symbols to perform mathematical functions. You can use the following keys: $+($plus sign to add$),-($minus sign to subtract$),*($asterisk sign to multiply$),$ and $/($forward slash to divide$).$ For example, if you entered"$=$B$4+$B$5"$ in a blank cell, the formula would add the values from those cells and output the result. SUM Function: Allows you to refer to multiple cells and adds all the values. You can add individual cell references or ranges. If you entered $"=$SUM$($C$4,$C$5,$C$6)"$ into a blank cell, the formula would output the result of adding those three separate cells. Similarly, if you entered $"=$SUM$($C$4$:C$6)",$ the formula would output the same result of adding those cells.