The range is 30. To find the range, you subtract the largest number, which is 100, by the smallest number, which is 70.
A+S=589
S=a-61
A+A-61=589
2a=589+61
2a=650
A=325
S=325-61
S=264
Hope this helps
I think the missing number should be
12.87
So you have x, then you square it to get x^2, then you minus 2x, then +3
The inverse is going backwards so you -3 then +2x then square root x
So you get square root x + 2x -3
I'm pretty sure this is right, sorry if I'm wrong.
24, since 54-30 is 24, and 30+24 is 54.
