I think it is B
hope this helps
3(23) really means 3*23, or just 3 multiplied by 23. For example: "Jana has 23 dollars. Her friend John has $23, and his friend Jacob also has 23 dollars. How much money do they have all together?" To solve this problem mentally, you could break 3*23 into two numbers you're familiar with multiplying, like 20 and 3, and then add the numbers together. For example: 3*20 + 3*3. 3*20=60, 3*3=9, and 60+9=69. So, 3*23=69.
V=BH
The base is 25 square feet because 5*5=25. The height is x feet. The volume is 62.5 cube feet.
62.5=25*x
2.5=x
X should equal 2.5 feet.