What would be a real world problem situation that you can write either a percent as a decimal or write a decimal as a percent

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

What is the point slope form of a line with slope -5 that contains point (2,-1)