Apopular brand of running shoes costs a local store $68 for each pair. if the store sells the shoes for $119, what is the percent of increase in the price?

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.