Can someone with this, during my lesson 2 paragraphs were blocked by a video so i couldn't see what it said

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

Which numbers have the same absolute value? choose all that apply. asap will mark at brainliest

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.