X+ y = -9
x+ 2y = -25
what is the value of x? ?

Which choice represents the sample space ,s for this event

Find an equation for the linear function which has slope -10 and x-intercept -7

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)