The school has 550 students, 30 teachers, and 10 administrators. What is the ratio of teachers to students?

The ratio of teachers to students is 55:3.

Step-by-step explanation:

If you took the students and the teachers you could tell that simplifying the ratio was possible, so I divided the both by 10 and got 55:3. I could see there were no more possible simplifications, therefore, 55:3 is the ratio you are looking for. If you didn't need it simplified the answer is 550:30. Have a great day!

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.