Can someone help me out with this question real quick? Please answer all of them person with the fastest answer will be picked as brainliest

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

You are making a blueprint of your bedroom and you plan to use a scale factor of 18 . the actual width of your room is 14 feet and the actual length of your room is 16 feet. determine the width and length of your room on the blueprint. on the blueprint, your room will have a width of feet and a length of feet.

Write and solve a real word problem that involves determining distance on a coordinate plane