For static equilibrium, what is the force F required from the biceps given the following? $1)$ the tendon inserts $2\mathrm{.}0$ cm from the elbow joint center and is at $90$ degrees to the forearm; $2)$ the weight of the forearm is $80$ N and can be considered to act at a distance of $25\mathrm{.}0$ cm from the elbow joint center.

Please give the numerical value only and not the units in the answer box.