The half-life of uranium-235 is 704 million years. This means that 50% of the original radioactivity is present after 704 million years. How long does it take for the radioactivity of uranium to reduce by 10%?

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse. a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?