To find the cost of the lunch meat per pound, we first need to determine how much Lani spent on the lunch meat.
- The total amount spent on groceries is $30.25.
- He spent $5.25 on apples and $3.25 on a box of crackers.
Now, let's calculate the total spent on apples and crackers:
\[ 5.25 + 3.25 = 8.50 \]
Next, we find out how much he spent on lunch meat by subtracting the total spent on apples and crackers from the total amount he spent on groceries:
\[ 30.25 - 8.50 = 21.75 \]
So, Lani spent $21.75 on lunch meat.
Now, we need to calculate the cost of the lunch meat per pound. Since he bought 3 pounds of lunch meat, we divide the total cost by the number of pounds:
\[ \text{Cost per pound} = \frac{21.75}{3} = 7.25 \]
Thus, the cost of the lunch meat is:
\[ \boxed{7.25} \]
So, lunch meat cost $7.25 per pound.