Simplify 2(2x-y)-4(x-y)+3y

please give the answer if you know how to solve it​

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30