All whole numbers are positive and can include fractions and decimals.

Whole numbers are the set of numbers that include zero and all the positive numbers that we count with, like 0, 1, 2, 3, 4, 5, etc. What this set doesn't include are negative numbers and numbers that are expressed as fractions or decimals. In other words, whole numbers include zero and all positive integers.

C. i believe it is (5×(-20))+(100×(0.7))