Answer:
33.3%
Step-by-step explanation:
Let's say the percent change is x%. Then the equation is:
30 + x% * 30 = 40
Subtract 30 from both sides:
x% * 30 = 10
Divide by 30:
x% = 10/30 = 1/3
Remember that % simply means "out of 100", so:
x/100 = 1/3
Multiply both sides by 100:
x = (1/3) * 100 = 33.3%
11. 1/81
12. 1/512
13. 1/81
14. 1/125
17. 1/72
18. 189/625
Answer:

Step-by-step explanation:
Since there are nine 2s being multiplied by each other, we can represent this as
.
B. Is the answer to your question
Answer:
3000,
Step-by-step explanation:
5 or above round up, 4 and below keep it the same