"my new phone cost a fortune,"said amy. " mine costs twice as much," said jill. if together, the two phones cost $575.25, how much was each girl's phone?

Cost of Amy's Phone= $191.75

Cost of Jill's phone = $191.75*2= $383.5

Step-by-step explanation:

let Amy's phone cost be A

Jill's phone cost = 2A

A/Q-

A +2A = $575.25

3A= $575.25

A=$575.25/3

A= $191.75

then,

Cost of Amy's Phone= $191.75

Cost of Jill's phone= $191.75*2= $383.5

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.

pi x^2

step-by-step explanation:

pi times x squared