Find a3. a1=1
a2=1
an=an–1+an–2
Write your answer as an integer or fraction in simplest form.

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking