The mass of Earth is made up of these parts.

oceans 1.4 × 1021kg

crust 2.6 × 1022kg

atmosphere 5.1 × 1018kg

mantle 4.043 × 1024kg

outer core 1.835 × 1024kg

inner core 9.675 × 1022kg

What is the order, from least to greatest, of the masses of each part of Earth? Order the parts from least to greatest, with 1 being the smallest mass and 5 the greatest mass.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?