Answer:
56
Step-by-step explanation:
Multiples of 7:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70
Multiples of 8:
8, 16, 24, 32, 40, 48, 56, 64, 72
The least common multiple of 7 and 8 is 56.
d and c
4 grams
Mass is conserved, so if you start with 4 grams, you end with 4 grams.
