Can someone help me answer this question please?

Question

asked May 9, 2021 197k views

1 Answer

Jiandingzhe · Answer 1 · 2021-05-13T18:53:50+0000

Answer:

0.10

Explanation:

between 1980 and 2010 : 30 years

the change of price:3.99-0.99= 3 dollars

the average rate : 3/30=0.10 or 10 %