Answer: 20 friends
Step-by-step explanation:
47 - 7 = 40
40 ÷ 2 = 20
Just to double check, 2 x 20 = 40 + 7 balls left over = 47
Answer:
x = -2
2x + 4 = 0
2x= -4
x=-2
The one furthest to the right.
Yes
None of them repeat
Using pythagorean theorem: