Part a: an angle is two collinear rays with a common endpoint. find an example that contradicts this definition. how would you change the definition to make it more
accurate? (5 points)
part b: give an example of an undefined term and how it pertains to angles (5 points) plzz i need

What is the result of adding the system of equations? 2x+y=4 3x-y=6

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?

To factor 4x2-25, you can first rewrite the expression as: