Answer:
A
Step-by-step explanation:
The answer
21
Explanation
First you find the original volume which is 10x7x3=210
Then you find the new volume which is 9x7x3=189
Finally take 210-189= 21
Answer: It's B 50
Step-by-step explanation:
Answer:
18, -3
using the formula for midpoint M=(x1+x2)/2 ,(y1+y2)/2