You buy some post cards at 55cents each and one newspaper for 35cents. which could be used to determine the number of post cards (p) you can buy if you only have $2

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

How do i put 3(x+7) in distributive property

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?