sorry i just want some points :)
Answer:
-4
Step-by-step explanation:
(-6)(2)-4(-1)(2)
(-12)-(-8)
-12+8=-4
Answer:
21 in
Step-by-step explanation:
by the Pythagorean theorem we have

notice that the 841 and the 400 don't go squared because they already squared!
Answer:
5
Step-by-step explanation:
idek how to explain