A right pyramid with a square base has a base length
of x inches, and the height is two inches longer than
the length of the base. Which expression represents
the volume in terms of x?
x2(x+2) cubic inches
2) in.
x(x + 2) cubic inches
+
(x
+2 cubic inches
o x2+2 cubic inches
x in.

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?