Final answer:
To find the total length of all the scarves, multiply the length of one scarf by the number of scarves and then convert the answer to feet.
Step-by-step explanation:
To find the total length of all the scarves, we need to multiply the length of one scarf by the number of scarves. In this case, Hans knit a scarf for each of his 7 friends, and each scarf was 92.4 inches long. So, to find the total length, we multiply 92.4 by 7:
92.4 x 7 = 646.8 inches
Since the question asks for the answer in feet, we need to convert the inches to feet. There are 12 inches in a foot, so:
646.8 inches / 12 = 53.9 feet
Therefore, the total length of all the scarves put together is 53.9 feet.