The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 5.6% per hour. How many hours does it take for the size of the sample to double?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

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?

Opposite angles in a parrellelogram are