Tyler knows that 22 students are in band out of 45 students. If the entire school has 675 students, how many are in band?

Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?