Brittany's family is driving at a speed of 45 miles per hour. if x represents the distance they have traveled and y represents the time they been traveling, which of the following equations shows the relationship between x and y?
x = 45 + y
y = 45 + x
x = 45y
y = 45x

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?