Answer:
21
Step-by-step explanation:
You were close to de answer but you rounded in a wrong way
If we calculate <em> </em>we get<em> 21.2602916255</em>
We need to round to the nearest whole number, it means that we have we only have two options: 21 or 22
We need to remember the rounding rules:
We see that 1 is followed by 2, it means that we have to round the number down, so our answer is 21
x= -6, -2
8 times because you take 4 times 2 and get 8
4 less kilgrams than previous weight
19 and 26
The other 2 cant work because that would make the total Degrees inside the triangle more than 180 (this is impossible)