Solve the system of linear equations by substitution.
3x + y = -3 -2x + y =7

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

What is the ratio of the length of an object in yards to the length of the same object in miles?

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points