When Tom plays darts, he hits the target 65% of the time. Find the probability that he
hits the target at least four out of next six
attempts.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

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?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83