I really need help with this workshop, it's about inequalities and systems of equations. If you could send me the answers it would be really helpful .

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.