Answer:
Step-by-step explanation:
(a + b)² = a² + 2ab +b²
a = y & b = 10
(y + 10)² = y² + 2 *y*10 + (10)²
= y² + 20y + 100
Answer:
simple random sampling
Step-by-step explanation:
The property is commutative property also known as flip flop property to some people
<span>B:she could divided both sides by 3 to get x+2=2y</span>
