Solve for x y and z i need a lot of help

It says factor each expression 49x-28?

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

Which sentence uses an objective tone? we will plant the best garden of any school in the area. the new campus garden will surely be envied by other schools. a garden would provide numerous benefits to the students. you will probably agree that gardens have many benefits.