75 plz what is the value of the x variable in the solution to the following system of equations? 4x + 2y = 12 x − y = 3 a: 0 b: -3 c: 3 d: 2

Taking algebra two apex courses and need with these questions

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Can someone me with these two circle theorem questions asap?