Aisha wants to make two quilts, each with the same area. the first quilt will be square with sides s feet long. the second quilt will be a rectangle with a width that is half the length of a side of the square quilt and a length that is 6 feet longer than a side length of the square quilt.
which quadratic equation can be used to find s, the side length of the square quilt?
s2 = (1/2s)(s + 6)
s2 = (s)(s + 6)
s2 =(1/2s) (6s)
s2 = (s)(6s)

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?