Help me this is missing homework

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

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?