Finding Resistance in RC Circuit

[Matt21]

Homework Statement

In a simple RC circuit the current as a function of time behaves in the following manner:

I(5s) = 8.823
I(10s) = 7.788
I(20) = 6.065
I(30) = 4.724
I(40) = 3.679
I(50) = 2.865
I(60) = 2.231
I(70) = 1.738
I(80) = 1.353
I(90) = 1.054
I(100) = 0.821
I(110) = 0.639

Assuming that the capacitance C = 837 nF, what is the resistance R (in MΩ)?

Homework Equations

T=RC

The Attempt at a Solution

I have attempted this many different times. I know that the RC constant is equal to the resistance times the capacitance but I'm having trouble finding the RC constant and don't really have any idea where to start.

 

[cnh1995]

Hi Matt! Welcome to PF!

I have attempted this many different times.

You should show your attempt here.
Is the capacitor charging or discharging?
What will be the equation of the current? How many unknowns will it have?