What theorem shows that ΔACE ≅ ΔBCD?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Which of the functions below could have created this graph?

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply