Answer:
Which of the following is a common sign that a chemical change has occurred?
Step-by-step explanation:
I think it’s 25x if not send the equation answers
9 pounds
8oz x 18 = 144oz
144oz/16(oz per lb) = 9 lb
5:8 and 20:32 would be a proportion.
Easy way to find this:
Set up the proportion as a fraction.
Use the cross product property. Multiply the diagonals and if the products of the diagonals are the same, then they are proportional.