I know to do it but I’m confused. Someone please help.

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have