3x - 1 = 2x
3x = 2x + 1
3x - 2x = 1
x = 1
Positive correlation means that if x goes up then y goes up, negative correlation means that if x goes up then y goes down. Since both x and y are increasing each time, it is positive.
Answer:
Step-by-step explanation:
the 4 one
Answer:
correct answer is 10
Step-by-step explanation:
a1 = 10 correct
a2 = 10+10 = 20
a3 =20+10 = 30..