Can some one help me with this question its hard :( down below ill give brainliest

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Could someone . i have tried to solve myself but my calculation is off

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?