Find the sum: (3x3 + 2x2 + x + 4) + (2x2 - y2 - 3x + 1). O A. -x3 + x2 + 3x +5
O B. 5x3 + x2 - 2x + 5
O C. 5x3 + 4x2 - x + 5
O D. x3 + x2 - 2x+3

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

Hi my sisters and brothers can tell me the answer because i don’t understand the question

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257