Answer:
a) 
b) $12,000
Step-by-step explanation:
We are given the following information in the question:
The cost C of moving rubble is proportional to the product of the mass M of the rubble and the distance D the rubble must be moved.
This can be written as:
a)


b) It costs 50 dollars to move 1 ton of rubble 1 mile

We have to find cost to move 16 tons 15 miles.
Putting the values in the function:

Thus, $12,00 is the cost to move 16 tons 15 miles.
The answer is a. Because because congruent angles are equal. if they are equal and start at the center of a circle this means that they can only travel the same distance before hitting border of circle. this would make their arcs the same
0⁰ = 0
or it can be with any number like 44⁰ it would equal 1
:)
x+x+55+x+38=180
3x+93=180
3x=87
x=29°