To find the total cost for Mr. Imani to purchase 10 packs of paper and 30 notebooks, we can use the formula:
\[ \text{Total Cost} = 1.25p + 2.50n \]
Now, plug in the values for \( p \) and \( n \):
- \( p = 10 \) (packs of paper)
- \( n = 30 \) (notebooks)
Substituting these values into the equation:
\[ \text{Total Cost} = 1.25(10) + 2.50(30) \]
Calculating each term:
- \( 1.25(10) = 12.50 \)
- \( 2.50(30) = 75.00 \)
Now, add these two results together:
\[ \text{Total Cost} = 12.50 + 75.00 = 87.50 \]
Thus, the total cost for Mr. Imani to purchase 10 packs of paper and 30 notebooks is $87.50.