what is the area of this trapezoid

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

Me because some of question i don’t understand

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15