a camera is mounted at a point 4500 ft. From the base of a rocket launching pad. Assuming the rocket Rises vertically what is the height of a rocket from its base when the camera angle of 30° round your answer to the nearest Foot ​

Can someone explain to me how to do

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?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?