How do you right 77 in scientific notation

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.

How do i put 3(x+7) in distributive property

If the value of cos330°is√3/2 then find cos 165°.