i need help please

one kilogram is poured into a cylandrical vase and fills it to a depth of 8 cm. find the cross section of the cylander. how do i do this?

18 Estimate 8128 /18 by first rounding each number so that it has only nonzero digit. 20. Find the digits in the tens place, in the tenths place, and in the ten thousandths place for the following number. 465.2587

10. What is 0.000750 in scientific notation? 75 × 10–4 7.5 × 10–3 7.5 × 10–4 7.5 × 10–5 11. What is written as a decimal? (1 point) 4.2 4.3 4.4 4.5 12. The 2010 census data for the populations of three states is shown below. According to the data, which o...