Step-by-step explanation:
A. 2(10)-(-10)
20 -(-10) -------> (-)×(-) =(+)
20 + 10
30
B.29 + 1
30
Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
If that is -2+1+4+13 I think it should be 16
point, line, plane............................
Answer:Mapping Rule A mapping rule has the following form (x,y) → (x−7,y+5) and tells you that the x and y coordinates are translated to x−7 and y+5. Translation A translation is an example of a transformation that moves each point of a shape the same distance and in the same direction.
Step-by-step explanation:
