5.2 feet is 158 cm
5 feet, 2 inches is 157 cm
179
5 ft 10.5 inches = 70.5 inches = 70.5 * 2.54 cm = 179.07 inches which, rounded to the nearest cm is 179 cm.
320.0
2.54 is rounded for 3. That's because its tenth decimal place is 5 or more, so that whole number should be up once without those decimals. If its tenth decimal place is under 5, that it should have that decimal staying as the same, but without its decimals.
The answer will depend on the degree to which the number is rounded. Without any indication of that, it is not possible to answer the question sensibly.
179
5 ft 10.5 inches = 70.5 inches = 70.5 * 2.54 cm = 179.07 inches which, rounded to the nearest cm is 179 cm.
320.0
0.10, to the nearest whole number - ie without a decimal - is zero.
29.4 is a positive decimal number. Rounded to the nearest ten so that the units (or ones) are removed it becomes 30. If the question refers to presenting this number without any figures after the decimal point then it can be written as 294 x 10-1
819.00
The answer will depend on the degree to which the number is rounded. Without any indication of that, it is not possible to answer the question sensibly.
7000
6000
The answer will depend on the degree to which the number is rounded. Without any indication of that, it is not possible to answer the question sensibly.
130000
Without rounding the answer is 0.014245014245014 To the nearest tenth, that's 0.0.