Answer
50 percent increase
Work Step by Step
Since the value inside the parenthesis is $1+.5$, we see that this is a 50 percent increase with a growth factor of 1.5. The initial amount is the coefficient of the expression, which is 2.4.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.