A projectile is shot at an angle of pi/4  and a velocity of  55 m/s. How far away will the projectile land?

It will land $\text{310 m}$ (rounded up to 2 significant figures) away from initial point.
R = (u^2 sin2theta)/g = (("55 m/s")^2 × sin(2 × π/4)) / ("9.8 m/s"^2) = "310 m"