David's pumpkin cost $8.22
His sister's pumpkin cost $4.98
They paid $13.20
Answer:
Coordinates switch, and the new y-coordinate changes sign
Explanation:
We have point A with the coordinates (-1,2), when we rotate it c90º it becomes (2,1).
What happened? The coordinates switched and the x-coordinate of A (-1) became the y-coordinate of A' (1) and it changed its sign.
A. hope this helps I’m pretty sure it’s right though
Answer:
Each student earned $16.27.
Step-by-step explanation:
48.81 / 3 = 16.27
