The half life of lodine-131 is 8.040 days. What percentage of an Iodine-131 sample will remain after 40.20 days?
.3125%
3.125%
31.25%
312.5%

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear