1 bác nông dân thu hoạch được 8 tạ thóc bác bán 8 phần 3 số thóc trên với giá 8500đ/kg Hỏi khi bán số thóc trên thì bác thu về bao nhiêu tiền

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.

my answer is$ 12

step-by-step explanation:

because 15 -2=12

answer: b

step-by-step explanation:

- (2, -7)

- lines r and s and lines t and u must be parallel