Evaluate 5 - (4 + 2)2
O A. 9
O B. -15
O C. 5
O D.-31

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21