Answer:
$52
Step-by-step explanation:
Using the equation
y=mx+c
82=7x+c
122=11x+c
11x-7x=122-82
4x=40
x=10
To get c
82=7(10)+c
82-70=c
c=12
For 4 lessons
y=10(4)+12=52
Answer:
Step-by-step explanation:
# Statement Reasoning
1). KJ║ML Given
2). ∠KLM ≅ ∠LKJ Alternate interior angles
3). KL ≅ LK Reflexive property
4). ΔKJL ≅ ΔLMK SAS congruence postulate
P(7,6), Q(1,6), R(4,2)
We have PQ parallel to the x axis. We'll call that the base,
b = 7 - 1 = 6
The altitude is then the y difference h = 6 - 2 = 4
The area is 
Answer: 12 square units
In general we can use the shoelace formula for the area of any polygon given coordinates. We write the points like this:
(7,6), (1,6), (4,2)
(1,6), (4,2), (7,6)
The area is then half the absolute value of the sum of the cross products:

If I am correct the answer is 369,600 feet per hour.
I can’t see the photo sorry