-4.5 is the average.
It is (3 + 21)/2 = 24/2 = 12
12 + 4=16+5=21 21 divided by 3= 7 your answer is 7
Anywhere from 12 - about 21
(10[12]) - x = 11(10-1)120 - x = 99-x = 120 - 99-x = -21-x(-1) = -21(-1)x = 21So, the answer is 21.
23
For 12: 4, 6, 12 For 21: 21
35
The Answer is 26
12/21 is December 21. and December 21 is the winter solstice.
21 more than 12 is 21+12, which is 33.
(21/x) (12/100)= 175
Average of 21, 24, 21 and 23 = (21+24+21+23)/4 = 22.25