You need PEMDAS
do 3·6 and then 12/6
when you subtract the product and quoetient you get 16 for the answer
To find the cross product, you can set this up as a proportion. Please see the attached paper for one of the proportions you could use.
You would then multiply the numbers that are diagonal from each other.
You would have 21(8) = 12x or
168=12x.
I wrote it down and put it on paper instead ( i didn't wanted to type it The phone)
Answer:
bag weigh 0.45 lbs
Step-by-step explanation: