Will walked the dog 2/4 mile on monday. on wednesday, leah walked the dog 3/6 mile. will says that he walked farther than leah. is he correct?

Ineed to learn how to solve this problem

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

For what value of x does 4x = (1/8) x + 5?