Answer:
EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Answer:
i79
Step-by-step explanation:
Answer:

Step-by-step explanation:
Put negative exponents in the denominator to make them positive.




Answer:
c) 255
Step-by-step explanation:
d isn't divisible by 5 and both a and b aren't divisible by 3
14-8=6, so 8 balls balance with 6 balls and 20 grams. From this you know that 2 balls=20 grams, simply divide this by 2 to get the weight of one ball which will weigh 10 grams.