Tom build a pattern that is represented by the equation b=2f +6, where f is the figure number of the pattern and b is number of the blocks in each figure. how many blocks are needed to make the 9th figure in the pattern

Last saturday, the museum box office sold 281 tickets for a total of $3,954. adults ticket cost $15, and students ticket cost $12. how many of each kind of tickets were sold?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?