A scientist sets up two cameras to monitor the wildlife in a nature reserve. The cameras are set up exactly 4 kilometres (km) apart. How far is this distance in metres (m)?

What is a graph with a never ending line called?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

The experience c-0.25c can be used to find the cost of an item on sale for 25% off which expression beloit equivalent to c-0.25c