the area enclosed between the concentrated circle is 770 CM square given that the radius of outer circle is 21 CM calculate the radius of inner circle​

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.