George has a small coin collection. he has collected 16 gold coins, 28 silver coins, 32 copper coins, and4 bronze coins. at a flea market, george sells 15% of his coins. find the number of coins he sold.

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.