What are the solutions of the following system?

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

Is the orthocenter of a triangle on the inside ?

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply