Answer:
A stratified random sampling involves dividing the entire population into homogeneous groups called strata (plural for stratum). Random samples are then selected from each stratum. ... A random sample from each stratum is taken in a number proportional to the stratum's size when compared to the population.
(13/20) • 100 = 65%
65% of the can are recycled.
Volume should be 226.08
volume of a cone= 1/3 pi radius squared multiplied by height
6x6=36 multiply by height 36x6=216 divide by 3=72 now multiply by pi =226.08
your answer is 226.08
The given equation is

And we have to solve for y.
Solving for y, means isolating y . And to isolate y, we need to get rid of 4 that is with y .
It means we have to separate 4 from y, and for separation , we have to perform division. That is, we have to divide both sides by 4, and that will be the next step .
So out of the four options, correct option is the last option .