Can anyone help me with this?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

Abus travels 280km south along a straight path with an average velocity of 88km/h to the south. the bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip last?