The distance between -7 and 2 on the number line is? a) 5b) -5c) 9d) 10

Given right triangle xyz, which correctly describes the locations of the sides in relation to

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

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"