Plsssssss helppppppp!!!!!!!
I WILL AWARD BRAINLIEST!!!!!

Answer:
[tex] \frac{12}{8} [/tex]
Step-by-step explanation:
''X is the point reached by F'' F reached the point at 12 in 4seconds as it stated at the end of the question.
'' Y is the point reached by S'' S reached the point at 8 in 4seconds as well, also stated at the end.
t is time, so in terms of time which is 4seconds