Mei wants to buy a hat for $3.she gives the cashier $5. write the equation. use x for the variable

The cash price of a television is $580.the hire-purchase price of the television is $865.the hire-purchase price is an initial deposit of n% of the cash price and 6 equal monthly payments of $120.find the value of n.

Place the following steps in order to complete the square and solve the quadratic equation,

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10