Need some help. Which numbers are rational?

1. 4/5
2. √4/5
3. π
4. √25/4
5. 3.14
6. √10/49

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Is the point (0, 8) on the x-axis or y-axis? how do you know?

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent