What is the distance between 407 squared and negative 68 squared

Construct the graph that models the given situation

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n

Circle a has center of (2,3) and a radius of 5 and circle b has a center of (1,4) and a radius of 10. what steps will show that circle a is similar to circle b 1) dilate circle a by a scale factor of 2 2) translate circle a using the rule (x+1,y-1) 3) rotate circle a 180 degrees about the center 4) reflect circle a over the y-axis