Why is the square root of (-5)^2 25 but the square root of -5^2 is -25? ‍

The graph shows the rate at which paint is used to paint a wall. enter values to complete each statement below based on the graph. when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted. the unit rate is ( # )square feet per gallon.

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

Which expression gives you the distance between the points (5,1)and(9,-6)