Trigonometry
Length of line segment
Find the distance between the points (9, 9) and (-7, -7)

Can anyone me with 32,33,36,37,and 40.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

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?