3. Ray opened a savings account 10 years ago. He originally deposited $2,200 into the
account and now has a total of $2,406.21.
What is the interest rate Ray received if the
interest is compounded annually?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

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?

Can you me find the slope! (30 points)