A. The extra amount added to the selling price to arrive at the cost price
Answer: The relation is a function.
Step-by-step explanation: Since there is one value of y for every value of x in (-2,4), (3,7), (0,8), (5,8), and (1,6), this relation is a function.
I hope this helps you out!
The answer is 110 because if you multiply 8•16=128 and 18 cars are used, you subtract 128-18 which is 110.
Cos theta = 75/115
theta = cos^-1 (75/115)
theta = 49.2 degrees
