16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238
80
The answer is 672.
17k2-4k+19-14k2-16-7k-11k2=-8k2-11k+3
I would say 19 as the square root of 9 is 3, plus 16, makes 19. I would assume the questioner expects many people to answer 5 which is the square root of the sum of 9 and 16.
16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238
25 + 16 + 19 = 60
491
16 + 3 = 19
It is: 19-16+33 = 36
80
(16 + 3) + (16 x 3) = 19 + 48 = 67
It means: 9 times (19 -16) +7 = 34
50/10+16-19= 2
3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143
-187
-19