Expample write 0.81 in simplest form. the answer to 0.81 is 9/11 i need with these three

1. 0.5
2. 0.63
3. 0.214

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Use circumcenter theorem to solve for the given values

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .