The ideal diameter of a certain type of ball bearing is 30 millimeters. The manufacturer has a tolerance of 0.045 millimeter.
Write an absolute value inequality that describes the acceptable diameters for
hese ball bearings. Then solve the inequality to find the range of acceptable
diameters.

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

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?