The sum of two numbers is 68 the large number is 18 more than the smaller number what are the numbers

Need showing work for this problem 56.25 ×25.80

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship