Answer: half the number?
If you write an equation for it:
Let the number be x
1/2x = x - 1/2x
Refrection of point (0, 0) across y = 3 gives point (0, 6)
Refrection of point (0, -6) across the x-axis gives point (0, -6)
The number of guitar lessons that can be completed in 7 months is 2(7) = 14.
60 / 2 = 30
30 * 5 = 150
he had $150 at first
60, the amount he was left with was 2/5 or 40% of his original amount
