What is 30.92 rounded to the nearest whole number

Which of the following is the rational exponent expression of 6 root f

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

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