Three out of four students in school have at least one sibling if there are 300 students in your school how many siblings would have at least one sibling

The capulet and montague families love writing. last year, each capulet wrote 444 essays, each montague wrote 666 essays, and both families wrote 100100100 essays in total. this year, each capulet wrote 888 essays, each montague wrote 121212 essays, and both families wrote 200200200 essays in total. how many capulets and montagues are there? choose 1

2÷6+1/2 to the second power plus one

Which system of linear inequalites is represented by the graph?