Before getting to school, Nancy has a few errands to run. Nancy has to walk 7 blocks to the library, and 10 blocks to the museum, before walking the final 4
blocks to arrive at school. If Nancy has already walked 9 blocks, how many more
blocks must she walk before arriving at school? *

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Paul can type 60 words per minute and jennifer can type 80 words per minutes. how does paul's typing speed compare to jennifer's