Answer:
Step-by-step explanation:
Change the 2/3 to 4/6
Now the ratio becomes 3:4:6
So the number of each is
3x + 4x + 6x = 520
13x = 520
x = 40
Red = 3*40 = 120
Yellow = 4*40 = 160
Blue = 6 * 40 = 240
Total = 520
Answer:
b
Step-by-step explanation:
brainliest????
Answer:

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

Step-by-step explanation:
The formula Length x Width = Area is the correct formula for the area of a rectangle. The same formula works for a square!
Answer:4^2-(8x1)=8
Step-by-step explanation: