What is the equation of the line in slope intercept form

Mary had at least an 80% on her test write an inequality to represent this situation

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area