Ok so I hate doing this but I forgot how to do this so can somebody help me?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?