Answer: B
Step-by-step explanation:
North and North and South and South can't connect.
To have a magnetic effect North and South have to connect.
B has north and south together, so that is the correct answer
Answer:
-12/5
Step-by-step explanation:
Answer:
1 coin
Step-by-step explanation:
Given that c is number of coins, p the points collected and 20 is the constant.
-The equation for total points is p=20c, therefore, we calculate the number of coins as:

#Hence, Rita only has to collect 1 coin to earn 20 points.
Answer:
the answer is 30
Step-by-step explanation:
9+42:2=
9+21=
30