Colin is writing a Python program and needs to convert decimal to binary. Which function should he use? ILL GIVE BRAINLEIST TO BEST ANSWER

A: bin( )
B: convert( )
C: digi( )
D: main( )

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron (not a pyramid). the pyraminx shown below has edges 15\,\text{cm}15cm15, space, c, m long and vertical height h=12.2\,\text{cm}h=12.2cmh, equals, 12, point, 2, space, c, m. the triangle drawn with dashed lines is a right triangle. what is the distance rrr? round your answer to the nearest tenth.

When the pc version of the spreadsheet program became available, the ibm pc quickly became the top-selling personal computer?

Idon understand these and need some ! ?