The domain of a function, f(x), is all numbers equal to or greater than 1 but less than 3. What is the correct notation for expressing this domain?

Amarathon runner jogging at a constant speed for 45 minutes is it proportional to time or not

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Use sigma notation to represent the following series for 9 terms.