Energy Received Physics of Sound question

[annafagin]

Homework Statement

A sound of intensity I = 10-6 W/m2 falls on a detector of area A = 7 x 10-5 m2. (This is about the size of an eardrum.)
If the sound continues for 30 s, what is the amount of energy received in joules?

Relevant Equations

I = 10-6 W/m2

I'm not sure! I'm really lost on this problem to be honest.

 

[haruspex]

Homework Statement: A sound of intensity I = 10-6 W/m2 falls on a detector of area A = 7 x 10-5 m2. (This is about the size of an eardrum.)
If the sound continues for 30 s, what is the amount of energy received in joules?
Homework Equations: I = 10-6 W/m2

I'm not sure! I'm really lost on this problem to be honest.

Per forum rules, you need to show some attempt.
But the units are a big clue. How could you combine m², W/m² and s to get units of energy?