which numbers have an absolute value of 0.5

A. 0.5 and -5
B. 0.5 and -1
C. 0.5 and 2
D. 0.5 ans -1/2

The numbers that have an absolute value of 0.5 are 0.5 and -0.5. Therefore, the correct answer is D. 0.5 and -1/2.