Answer:
39
Step-by-step explanation:
20
+ 19
———>>> 0+9= 9
——-> 39
2+1= 3
I am not sure if you gave all of the information but if you did A because A > B. Did I miss something?
Answer:
-1
Step-by-step explanation:
It is negative 1 because the signs for the -3 are the same so you keep the -4, change the - to a +, then flip the negative 3.
Hope this helps!
Answer:
126°
Step-by-step explanation:
The total degrees should be 180° so 126+54=180