Answer:

perform cross multiplication:

So ratio is there are 10 pairs of white socks and 21 pairs of socks total so the answer is
21:10
Answer: 60°
Step-by-step explanation: use exterior angle property,
therefore, y+70°=130°
y=130°-70°
y=60°
Answer:
45 percent
Step-by-step explanation:
20-11=9
9 divided by 20= 0.45
0.45 x 100= 45%