Mr. Brown is creating examples of systems of equations. He completes the steps to find the solution of the equation below.

Based on this work, what is the solution to the system?

(-4, -4)
(0, 0)
no solution
infinitely many solutions

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Find cot x if sin x cot x csc x = √2

Factor the polynomial by its greatest common monomial factor.