Who is good at math i really need

What does the relationship between the mean and median reveal about the shape of the data

Find the values of y: 3y^3(y^2+ 2/3y)=0

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36