Answer: 7 hr
Step-by-step explanation:
Given
Distance between Emily and Kylie is 
Speed of Emily 
Speed of Kylie 
Distance traveled by Emily 
Distance traveled by Kylie 

They will meet after 7 hour.
4,5,9,10
just add two to each number
Answer: None of the above are correct.
Step-by-step explanation:
Given function: 
We know that the value of tan x =0 at x=0.
Also, 


Hence, the only option is correct is "None of the above are correct".
Answer: X^2-x-1=y
Step-by-step explanation:
Multiply every number inside the parentheses
(X+3)(x-4)
X^2-4x+3x-1
Add all similar numbers and we get
X^2-X-1