Is the sum of a rational and irrational number rational or irrational?

An angle that measures between 90 and 180° is called a(,

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220

If f(x) = 5х – 2 and g(x) = 2х + 1, find (f – g)(x).