To find out how much it will cost Mr. Armani to purchase 10 packs of paper and 30 notebooks, we can substitute the values of \( p \) and \( n \) into the given equation:
\[ 1.25p + 2.50n \]
Given:
- \( p = 10 \) (packs of paper)
- \( n = 30 \) (notebooks)
Now we can substitute these values into the equation:
\[ 1.25(10) + 2.50(30) \]
Calculating each term:
-
For paper: \[ 1.25 \times 10 = 12.50 \]
-
For notebooks: \[ 2.50 \times 30 = 75.00 \]
Now, we add these two results together:
\[ 12.50 + 75.00 = 87.50 \]
Therefore, the total cost for Mr. Armani to purchase 10 packs of paper and 30 notebooks is $87.50.