100 feet
To find the total length of the entire string you multiply 8 times 5 and get 40.
To convert into feet multiply by 3 and get 120 feet.
To find the total amount of string he uses, multiply 4 times 5 and get 20. It is already in feet.
Next you subtract 120 - 20 and get 100 feet, the total amount of string he has left.
Answer:
1375
Step-by-step explanation:
10*25+15*75 = 1375
I would say the answer is 8.25
