Rachel earned $89.70 on tuesday she spent $55.89 at the grocery store how much money does she have left

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.

b.an increase in a causes b to decrease