Please I need help please hurry I will mark brainliest

Step-by-step explanation:
Remember: the formula for solving for volumes:
l • w • h
An easy way to do this is to convert all the numbers to decimals.
3 1/2 = 3.5
5 1/4 = 5.25
4 = 4
Now, we can multiply.
3.5 • 5.25 • 4 = 73.5
Convert 0.5 to a fraction: 1/2
Our final answer: D: [tex]73 \frac{1}{2}[/tex]