You need to add a picture of the graph
The answer is D. Trust me.
I believe that x=20 from the math i did hopefully its helpful.
Im not sure but
(sarah + tara)/2 = 8
(20 + tara)/2 = 8
20 + tara = 16
tara = 4hours ?? it doesn’t make logical sense but this is the only way i can think of
sorry if this wasn’t helpful ;-;
