I'm taking biology, chemistry and Spanish for A-Levels, should I take core maths? Maths is one of my weak subjects, but would be be helpful?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

12 point are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil