smolstylan smolstylan 21-09-2016 Mathematics contestada Lisa is 4 years older than three times her brother Sammy's age. Let 's' represent Sammy's age and 'l' represent Lisa's age. Which expression represents Lisa's age? • l = s + 4 • l = 3s • l = 3s + 4 • l = 4s + 3