What's the value of pi?

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Graph the equation by plotting point x=2

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