Help please and thanks

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

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12