It is probably easiest to copy & paste a graph or chart from Excel, but what if you have a picture to add? The following steps will walk you though that process.
Aligning objects can be done so that the tops are inline, or align boxes around the center of a column, or align it with the left or right side. You will become very familiar with doing this.
Objects that are selected can be moved with the 4-arrowed cursor, but it may not have the precision you need. A combination of keystrokes can help increase the precision of the move.