What is the total cost for 1 pound of nuts and 2.6 pounds of screws?

nuts $2 per lb​
split washers $2 per lb​
standard washers $3 per lb​
screws $5 per lb​
nails $4 per lb​
bolts $3 per lb​

The total cost for 1 pound of nuts would be $2.

The total cost for 2.6 pounds of screws would be 2.6 x $5 = $13.

Therefore, the total cost for 1 pound of nuts and 2.6 pounds of screws would be $2 + $13 = $15.