Can someone pls answer this question for my sis she's in the 4th grade and i don't remember how to solve this 17/15 - 4/5

TYSM( btw worth twelve points )

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

What is the anwers for 9+2x=5x-3-x