The price of a 40 ounce bottle of shampoo is proportional to the price of the 10 ounce bottle how much would the 40 ounce bottle cost?

What is the quotient of -3/8and-1/3?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

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?