Distributive postulate.
The expression 3x + 3 = 3(x + 1) is an example of a distributive postulate. It says that multiplying a number by a group of numbers added together is the same as doing each multiplication separately.
Answer:
9 hours
Step-by-step explanation:
$495 divided by 15 hours = $33 - this is how much the trainer charges per hour.
$297 divided by $33 per hour = 9 hours of training
The answer to this question is 120
