Last week, carol read 5/10 of a book. this week, she read another 4/10 of the book. she says she has read 9/10 of the book in all. explain how to correct carol's mistake.

There are some mistakes in the wording, but other than that I can't find any other mistakes.

So, really so did not make any mistakes.

But, instead of 9/10 she should had put 90%.

Step-by-step explanation:

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

0 is its x and y coordinate