OK, 60 pounds is weight.... cost is money.... what the what?
The number in parenthesis after f is the x coordinate. Basically, it says which y coordinate is tied with an x value. In choice a, it says that when x is 0 y is 3, etc.
So, you can look at the graph to see which answer choice has a point from the graph. Choice a says (0,3), and that does not match. Choice b says (5,-1) and that does match. So the answer is B.
*(x,y)*
Probably 2561 but since area equal r^2 I thought it would be 3217
Answer: 6
Step-by-step explanation: DE is 4+2 so EF would be the same if it is equal.