Students were given a metal cylinder and asked to calculate its density. The pictures above show the riders of the triple beam balance and the water level in
the graduated cylinder before and after the cylinder was inserted.
What is the density of the metal cylinder?

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a