The Pep band made $640 during a fund-raiser. The band spent $400 of the money on new uniforms. What percent of the total did the band members spend on uniforms?

62%

Step-by-step explanation: if you divide the amount spent by the amount made you get the percentage

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.