8n + 2 = 5n + 11 , does anyone one know the answers

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

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)