Answer: c >= 2
Step-by-step explanation:
Step 1: represent the question with an equation
Let the missing age be c
3 times 1/2c + 3 is greater than or equal to 12
3 (1/2c +3) >= 12
Divide both sides by 3
1/2c +3 >= 4
Combine like terms
1/2c >= 4 -3
1/2c >= 1
Divide both sides by 1/2
c >= 1 ÷ 1/2
c >= 1 x 2/1
c >= 2
therefore the value that can represent carlita's age starts from 2
