8.3 × 3 = 24.9
45 + 24.9 = 69.9
Hope this helps!
So first thing first
All you need to do is get is 15% of 53.52 witch is 8.02800 so
53.52-8.02800 is <span>45.492 so she was wrong </span>
The second answer.
You have the first prize, x.
Then you have the second prize, which is x - 50.
Then you have the third prize, which is x - 50 -50, or x - 100.
So the total money is:
x + (x-50) + (x-100).
