find k if x^3+6x^2+kx+12 is divisible by (x+4)

Which ratio is equivalent to 10: 85

Answer this question, only if you know the answer. 30 points and brainliest!

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