What is the solution of the system of equations shown in the graph below? 1) (1,0) and (-3,0)
2) (0, -3) and (0, -1)
3) (-1, -2)
4) (-2, -1)

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

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)

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.