The 7 should be one's place...?
Answer:
The nonpermissible replacement of the variable y is -3
Step-by-step explanation:
The nonpermissible replacement of the variable in a certain expression is the value of the variable that will make the denominator of the expression zero.
The expression
has the denominator 
This denominator cannot be equal zero, thus,

7-5=2
You find the differences
Answer:
27
Step-by-step explanation:
Both the negative signs cancel each other out which means it's positive!
I hope this helps, and have a great day!
Hello!
Angle POQ and angle MON are vertical which means they are congruent
x - 28 = 149
Add 28 to both sides
x = 177
Angle NOQ and angle NOM are supplementary meaning they add to 180
NOQ + NOM = 180
Put in the known angle
NOQ + 149 = 180
Subtract 149 from both sides
NOQ = 31
The answers are x = 177 and angle NOQ = 31
Hope this helps!