Question

what is 15 - (-5.03) - 7.88 in whole number

Answer 1

since the final answer is in decimal
it can't be expressed as whole number

Answer 2

12 is the answer.
Explanation:
15 - (-5.03) - 7.88
= 15 + 5.03 - 7.88
= 20.03 - 7.88
= 12.15 which is equal to 12 when rounded to nearest whole number.