Question

Pls HELP me on this I'm not good at it (QS 14)

Answer 1

You'll have to find the volume of the smaller rectangle and the larger rectangle separately, then add them together. 

For the larger rectangle: V = length x width x height
V = 10 x 6 x 4 = 240 

Now you use the same equation to find the smaller rectangle.
V = lwh
V = 4 x 3 x 6 = 72

Add the two volumes together to get the volume of the entire composite figure. 
240 + 72 = 312

Answer 2

The answer is 314

I hope this helps