What is the size of lengths in inches of a cube with the volume of 1 cubic inch

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

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?

What is the area of the trapezoid shown