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
Which expression represents Lisa's age?
• l = s + 4
• l = 3s
• l = 3s + 4
• l = 4s + 3