56.3 I believe is the answer
Answer:
1. Tall Dog
2. Small Dog
3. Regular Dog
4. Fat Dog
Step-by-step explanation:
It's simple. Look at the problem ;)
In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. It includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields.
Answer:

Step-by-step explanation:
Since angle RTS is a right angle, we have three similar triangles.
Thus, 
Cross Products, 
Take the square root: 