Answer:
Step-by-step explanation:
The number is already defined as ' h '. "Twice" means times by 2. So, 13 and twice 'h' are being added together. Here 13 and h are to be added, and the answer is doubled.
a)ab=-6×+4=-24
b)a÷d=-6÷-2=3
c)2bd=2×+4×-2=-16
Put the values according to the question
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