Need help with this maths question.

Answer:
D. 1,635
Step-by-step explanation:
Volume of prism:
V = (l * w * h)/3
V = (6 * 6* 8)/3
V = 96
Volume of cylinder:
V = [tex]\pi[/tex][tex]r^{2}[/tex]h
V = [tex]\pi[/tex] * [tex]7^{2}[/tex] * 10
V ≈ 1539.38
Add the two volumes together:
96 + 1539.38 = 1635.38