What theorem is this
sss, sas, asa, aas, hl, or not enough info​

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Which of the following circles have their centers in the third quadrant? check all that apply.

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation