Question

Determine which of these illustrates two quantities that combine to make 0.
Responses
A Bill lost ten pounds and then gained ten pounds.Bill lost ten pounds and then gained ten pounds.
B A business's profit if its income is less than its expenses.A business's profit if its income is less than its expenses.
C A business's loss its income is expenses are more than its income.A business's loss its income is expenses are more than its income.
D It is ten degrees below zero and then the temperature rises fifteen degrees.It is ten degrees below zero and then the temperature rises fifteen degrees.

Answer 1

A. Losing 10 pounds then gaining 10 pounds is -10 + 10 = 0, so the net change is zero. The others do not sum to zero (B/C describe a loss or negative profit, D is -10 + 15 = +5).