Answer:
90 dancers
Step-by-step explanation:
150/5=30
30x3=90
Answer:10% increase
Step-by-step explanation:
49500-45000=4500
4500/45000=0.1
0.1x100=10
10% increase
Answer:
0.41 (correct to 2 decimal place)
Step-by-step explanation:
If 
Let
, then 
We want to determine the rate of increase
after one day
and 


Rate of increase after one day, i.e. t=1
= 0.407 =0.41 (correct to 2 decimal place)