If the digit in the number place to the right of the one you're rounding to is 5 or more, then the number is rounded up. Otherwise, it is truncated at the place you're asked to round to.
a) the hundredths digit is 5, so the value is rounded up to 4.3 inches
b) the thousandths place is 4, so the number is truncated to 10.02 grams
c) the tenths place is 7, so the number is rounded up to 17 liters
