Amount saved by Nicole is $ 105
Solution:
Given that Patrician saves $ 1.20 everyday and Nicole saves $ 2.80 daily
The two girls saved $ 150.00 together
To find: Amount saved by Nicole
Let "x" be the number of days for which Patrician and Nicole saved money
Given that they both saved $ 150.00 together
So we can frame a equation as:


Therefore amount saved by nicole:
Nicole has saved $ 2.80 daily for "x" days

Thus amount saved by Nicole is $ 105