How do you divide 78.74 divided by 12.7 in steps

We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd