Answer:
$324
Step-by-step explanation:
We are told from the question that Teresa made $216 for 12 hours of work. This is expresed as:
$216 = 12 hours
To get the amount Teresa will work for 18 hours, we can write;
x = 18 hours
Divide both equation and find x
216/x = 12/18
Cross multiply
12x = 216 * 18
12x = 3888
x = 3888/12
x = 324
Hence Teresa will make $324 for 18 hours of work