the area of a rectangle with a perimeter of 20 units is given by f(w)=10w-w squared, where w is the width of the rectangle. Assume that w is a whole number. Make a table of values and a graph of the function.

In the geometric progression –3, 12, −48… what term is 3,072?

What is r i 4.5+10r=-6.5 with work pls

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?