Hello!
You have to find the area of the prism and the pyramid
rectangular prism is lwh
Put in the values you know
15 * 5 * 7 = 525
For a prism you use
[tex] \frac{lwh}{3} [/tex]
Put in the values you know
[tex] \frac{15 * 5 *13 }{3} [/tex]
Multiply
975/3
Divide
325
Add the values you know
325 + 525 = 850
The answer is D)[tex]850cm^{3} [/tex]
Hope this helps!
