y = total cost used.
x = additional minutes
y = $49.95 + $0.15x
$61.20 = $49.95 + $0.15x. Subtract the $49.95 from each side.
$11.25 = $0.15x. Divide each side by $0.15
75 = x.
Michael used 75 additional minutes.
The lateral area of the shape is the sum of the area of all lateral faces.
The area of the lateral face that is rectangle with sides 5 mi and 2 mi is
![A=5\cdot 2=10\ mi^2.](https://tex.z-dn.net/?f=A%3D5%5Ccdot%202%3D10%5C%20mi%5E2.)
As you can see the shape has all four lateral faces of the same rectangular form with the same sides lengths, therefore,
![LA=4A=4\cdot 10=40\ mi^2.](https://tex.z-dn.net/?f=LA%3D4A%3D4%5Ccdot%2010%3D40%5C%20mi%5E2.)
Answer: correct choice is B.
Answer:
Step-by-step explanation:
the triangles are similar because they are proportional. the 3 sides of 2 triangles fall in a particular table.