Zinc roofing weighs 1.6 pounds per square foot. jose wants to order 357.85 square feet of roofing. before ordering, he calculates how much weight that will put on his roof. his calculation is shown below.

357.85 times 1.6 = 214710. 214710 + 35785 = 178.925

why is his answer incorrect?
he did not line up the decimal points in the factors.
he put the decimal point in the answer in the wrong place.
he did not use a placeholder when multiplying by one.
he did not multiply 6 by 357.85 correctly.

He is wrong because did not multiply 1.6 by 357.85 correctly.

Step-by-step explanation:

The weight per square foot of zinc roofing is 1.6 pounds. Jose wants to order 357.85 square feet of roofing. The total weight of 357.85 square feet of roofing would be

1.6 × 357.85 = 572.56 pounds

His calculation was

357.85 times 1.6 = 214710. 214710 + 35785 = 178.925

He is wrong because did not multiply 1.6 by 357.85 correctly.

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)