Answer:
3x + 1y = $163
2x + 3y =$174
Step-by-step explanation:
Adult tickets to space amusement park cost x dollars children’s tickets cost y dollars.
Henson family bought 3 adults and 1 child's tickets for $163
x + y = 163
3x + 1y = 163
The Garcia family bought 2 adults and 3 child’s ticket for $174.
x + y = $174
2x + 3y = $174
Therefore the equations representing both families cost are
Henson family
3x + 1y = $163
Garcia family
2x + 3y = $174
The most general proccedure for this type of problems is the following:
For a quadratic function of the following form
; where b and c are real numbers.
1) Identify the value that accompanies the x, that is, the value "b"
2) Divide the value of b by 2 and then square it: 
3) Add and subtract in the function the value of 
4) Write the complete function of the form
For the function presented
the result is as follows:
1) The value of b is 12
2) 
3) 
4)
Finally the function is:

The zero pair that must be added is 36 and -36
The are formula for a triangle is (since a triangle is half a rectangle, and the area formula for a rectangle is b*h)
1/2 * b * h = area
Your equation would be:
1/2* 7.3 * 7 = area
=25.55
Answer:
1)
domain: (negative infinaty, 4)
range: (-4, infinaty)
I don't know the second one, I'm sorry.