Find the perimeter of the figure. (Please help!)

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220

The quotient of 15 and a number is 1 over 3 written as an equation