Aschool has an enrollment of 600 students. 330 of the students are girls. express the fraction of students who are boys to total students on lowest terms.

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.