Answer:
12 and 30
Step-by-step explanation:
look at the 2 dots were t starts and ends
Answer:
x=0
Step-by-step explanation:
You are given the function 
To find it inverse function, express x in terms of y:
Now change x into y and y into x:
The graph of the function 
has vertical asymptote x=0.
Answer:
$14 per lb
Step-by-step explanation:
Given:
- Brand Y = $18 / lb
- Special Blend = $17 / lb
Let x be the price per lb of brand X coffee
3 lbs of brand X coffee + 9 lb of brand Y coffee = 12 lbs of special blend
⇒ 3x + 9(18) = 12(17)
⇒ 3x + 162 = 204
⇒ 3x = 42
⇒ x = 14
Therefore, brand X costs $14 per lb
