For the lateral area, don't include the base area. For the surface area, you should include it.
3 in.
1 x 3 = 3
If you're enlarging it by a scale factor, a good way to look at it is a graph. A one by one box on a graph paper would turn into a three by three box.
Answer: D, 3 in.
Lets say she has x money
Now she spent 3/5of x means 2/5 is left
2/5*x=45
x=112.5
