Answer:
67%
Step-by-step explanation:
the original amount had to increase by 67% in order to equal the final about simply by dividing 2000 by 3000 getting 2/3 which is 0.666667 then multiplying by 100 to get a rate
21
round to 1
it is closest to 1 so it wouldnt make sense to round to a number farther away
D. 140
1.35
3.24/2.4=1.35