Determine the type of fee that will be charged in each situation ?

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

The bottom of a slide at the playground is 6 feet from the base of the play set. the length of the slide is 10 feet. how tall is the slide. 11.66 feet 10 feet 6 feet 8 feet