C++ Please!!

The last test was wrong please help me

In order to paint a wall that has a number of windows, we want to know its area. Each window has a size of 2ft by 3ft. Write a program that reads the width and height of the wall and the number of windows, using the prompts Wall width: Wall height: Number of windows: Then print the area with two digits after the decimal point: Area: ... wallarea.cpp Number of windows: 3 Area: 2982.00 pass Test 2 Wall width: 120 Wall height: 100 Number of windows: 10 Area: 11940.00 pass Test 3 Input: 40 57.5 6 \begin{tabular}{l|l|} \hline \multicolumn{1}{|c|}{ Actual } & \multicolumn{1}{|c|}{ Expected } \\ \hline & Wall width: \\ Wall width: & Wall height: \\ Wall & Number of windows: \\ Number of windows: & Nrea: 2264.00 \\ \hline Area: 2280.00 & \\ \hline \end{tabular} fail Score 2/3