Answer:
B)2.5
Step-by-step explanation:
When x = 3 the actual = 6
Residual = actual - predicted = 6 - 3.5 = 2.5
Given:
The demand function is,

The total revenue function is,

Answer:
Answer:
Option A, (2/9) or 2:9
Step-by-step explanation:
<u>Amount of books:</u> 2 books
<u>Amount of tennis balls:</u> 9 tennis balls
Books : Tennis Balls
<em>2 : 9</em>
<em />
Answer: Option A, (2/9) or 2:9