Estimate the product:
1/3 x 28

1/3 times 28. So, 28 is equal to 28/1.   1/3 x 28/1 equals 28/3. 28 is not divisible by three (the line separating a fraction is a division sign ;P), but 27 is, so you can round to 27/3, which is about 9.

This is a robot. try again lol. maybe you attached the wrong image.

The discount is 8.70 . you dont tell us the percent of tax added so there is no way to find out, unless i'm not seeing anything. without tax its 37.70