What is the equivalent fraction of 9/16 with denominater 16 if you help me i will mark u as brainlist (PLS HELP)

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

Simplify. 3(4+4x) (type your answer in with no spaces)