Which equation rappers sans the proportional relationship in the table

Answer:
c=8.5t
Step-by-step explanation:
8.5*3= 25.5
8.5* 4 = 34
8.5*5 = 42.5
8.5*6= 51
8.5*7= 59.5
Its more like the slope of the proportional relationship as for every x it is multiplyed to get the y