Hello please answer and explain :

Using the data in Table 1 in the experiment details file, calculate the force applied to the spring (in N) for a hanging mass of 251.0 g. Round off to the nearest 3 decimal places.

Table 1- Equilibrium position and number of oscillations per minute for different masses suspended from a spring Suspended mass Position of # of (g) the platform oscillation per + 0.5 g (cm) minute 1 0.3 cm + 1 51.4 31.1 86 151.2 42.8 62 251.0 55.3 51 351.4 66.8 44 451.2 77.1 39 551.6 88.2 36