I think the answer to this problem is b.
Answer:
21
Step-by-step explanation:
5 + 16 = 21
Step-by-step explanation:
(5.6) × 1/8

Here the unit fraction is 1/8
multiply 5.6 times 1
so its 5.6. then divide the decimal by 8
we know that 8 times 7 is 56
so 56 divide by 8 is 7
we have decimal point 1 number to the left
so we move decimal point 2 place left
Hence 5.6 divide by 8 is 0.7

Answer: 0.7
H+12=-12H
12=-13H
12/-13=H
Hope this helps