The ratio of teacher to student in a school is 1:18. There are 540 students. How
many teachers are there in the school?

Please answer me fast

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

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

How to use order of operation in 20 divide by 4 multiply 5 = 1