A dog can walk at 3miles for 10 seconds what distance will he cover

What is the measure of the smallest angle in the diagram? 15 29 32 45

I'm confused on this could anyone me and show me what i need to do to solve it.

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb