Answer:
two cost 5.6 dollars
Step-by-step explanation:
8.4 / 3=2.8$
2.8*2=5.6$
Answer:
3/6 or 50%
Step-by-step explanation:
there are 6 total tiles and 3 of them are even
Answer:
100 gm calcium, 30gm carbon and 120gm oxygen
Step-by-step explanation:
10% of a kg is 100gm of calcium, 3% of 1 kg is 30gm of carbon and 12% of a kg is 120gm of oxygen