ANSWER
Option 4 is the right answer
EXPLANATION
To answer the question, we have to translate each of the sentences into mathematical statements.
A mathematical equation must contain an equal to sign.
1. Three is less than twice a
This can be written as:
3 < 2 * a
=> 3 < 2a
This is not an equation, it is an inequalaity.
2. Two times 0.75 plus m
This can be written as:
2 * 0.75 + m
=> 1.5 + m
This is not an equation, it is an expression.
3. Half the product of five and j
This can be written as:
1/2(5 * j)
=> 5j/2
This is not an equation, it is a term.
4. Four times n is 24
This can be written as:
4 * n = 24
=> 4n = 24
This is an equation.
Option 4 is the right answer.
