Which expression is equivalent to (–2y – x) – (5y – 9x)?

A) 7y + 8x
B) –7y – 10x
C) –7y – 8x
D) 7y + 8x

Which system of linear inequalities is represented by the graph?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species