Answer:
The equation is equal to 
Step-by-step explanation:
Let
c-----> the cost in dollars
t----> the time in hours
we know that
One adult and two children

Answer:
Easy -2x
Step-by-step explanation:Because both a positive y and a negative y cancle out eachother so all thats left is both of the negative x's
The last selection should be your answer
QUESTION 1
The given function is

We simplify to get;

This function is equal to zero when 

QUESTION 2
The given function is
We factor to get;
This function equals zero when


QUESTION 3
The given function is

We factor to get,


The function equals zero when 



Hence the equation has no real roots.
The complex roots are
or 
Answer:1/30 page per minute
Step-by-step explanation:
2 1/2 pages =3/2 pages.
3/4 hrs=45 minutes
Hence the number pages he can type per minute =3/2 pages/45 minutes=3/2×1/45=1/30page per minute