Answer: Hello mate!
we know that Camilla earned $160 over the summer, and we know that she put 80% of her earnings into her savings. We want to know how much money did she have left over.
If she put 80% of her earnings, now she has the other 20% left.
To calculate this we need to write 20% in decimal form, this is 0.2, and multiply it by the total amount of money that she earned.
left over money = 0.2*$160 = $32
