If john starts works at 8.45am and finish at 5.15pm and has 90 minute of breaks per day how many hours does he work in once weak?

6.2.1. We wish to estimate the average number of heartbeats per minute for a certain population. The average number of heartbeats per minute for a sample of 49 subjects was found to be 90. Assume that? Can you show me how to figure out 322 divided by 7? What percent is equal to 0.7? What does a decile 20? What is 0.4 times 0.75? Lines that are coplanar and do not intersect? What is a kassnar side by side 28guage worth? What is 33 plus 33? How is math used in US food service? How do you factor 3x cubed minus 15x? What is the number 4395055 in expanded form? What is 84 as a product of its prime factors? What is the fraction in lowest terms for 0.88? What are different names for a ruby? What is the answer to 3 factorial? How many hours of the day are there on the first day of winter? What is the general shape of a graph of a quadratic function in the form yax2 c? What is the Rectangular array of 14? What is an ancient roman thing that starts with a you? What is 84 minus 39?