0.9
1.6569 rounded to nearest ten is 'zero(0)'. However, I think you mean the nearest 'tenth'. In which case the answer is 1.7. NB decimal digits have a suffix of '---th(s)'.
Its entire surface area works out as 747.7 square feet rounded to the nearest tenth
1860
It is: 12.4
100
1.5
7.3
1.0
342.8
0.1
10
about 3.3
Its entire surface area works out as 747.7 square feet rounded to the nearest tenth
1860
The answer is 18.2
It is: 12.4
755.3