To the nearest ten thousand the population of england was estimated to be about 620,000 in 2009 what might have been the exact population of england 2009 ? hurry its urgent

What does x = in this equation x+3+2x=x+5

Is a positive integer raised to a negative power always positive

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.