What is the distance on a Cartesian coordinate plane from (1, -1) to (7, 7)?

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

Azul has 4 green picks and no orange picks.you add orange picks so that there are 2 orange picks for every 1 green pick.how many picks are there now.