Use substitution to solve the system. y = 3x-4 4x-5y = −13

Do 12/14 and 8/10 have the same value? explain your answer.

Could someone with number 1 and 2

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)