There are 15 students on a prom committee and 20 students on a yearbook community. if 10 students are on both committees, how many students are on only one committee?

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

For what value of (y) is 3^3/3^y =1/9

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.