And so the music is really cheap!
Answer:

Step-by-step explanation:
<u>Step 1: Make an expression</u>
What number is 30 percent of 200

<u>Step 2: Multiply</u>
<u />

Answer: 
Uh.. Lemme see. Add up all the angle measures and then subtract them from 360. In this case, the answer is 87.
Consider, pls, this solution.
Note, that V1 marked with orange lines (see the graph), V2 - with green colour.
Answer:
Marion has 34 rocks and Vondra has 17 rocks
Step-by-step explanation:
1. 51 ÷ 3 = 17
2. Because Marion has 2 times the amount of rocks as Vondra you have do 17 × 2 = 34
3. So, Marion has 34 rocks and Vondra has 17 rocks