Answer:
Hey there!
A is correct. The +2 means shifted up two units, 1/2 means compressed by a factor of 1/2, and the -3 means to the left of three units.
Let me know if this helps :)
x = 8.4
Steps:
6400km
Step-by-step explanation:
Because 4300000m = 4300km
6400 km > 4300 km
x = 20
2x + 7x = 180
9x = 180
