Try to calculate them in your head and if that doesn't help use a calculator. I hope this helps
Answer:
1/3
Step-by-step explanation:
Line C to B is 9 long while Line C' to B' is 3.
That's a 1/3 reduction
The mass of the object would be 52.5g
Answer: 4s
Step-by-step explanation:
Product means multiply
4 times s = 4s
