Please help, I couldn’t play attention today in class so I don’t understand this. Thanks if you help

For part A
|5-6+1|

You either calculate the sum or difference to this equation and would turn out to be 0 as your answer

|5-6+1|=0

Therefore 0 is the answer to |5-6+1| for part A

For part B
2|-16.75|
The absolute value of any number is always positive

2*16.75

You then multiply it and then come up with 33.5

Therefore 33.5 is the answer for 2|-16.75| in part B.

2|-16.75|

Hope this helps~