What is the value of b if (3 + i) and (3 - i) are complex roots of 2x² + bx + 20 = 0? A. -12
B. -6
C. 6
D. 10

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.