Molly has 250 trading cards. she gives n trading cards to her friend carol. marcus has 430 trading cards. he gives away three times as many cards as molly does. how many trading cards did molly give away if molly and marcus have the same number of trading cards left? a.) 70 trading cards

b.) 80 trading cards

c.) 90 trading cards

d.) 180 trading cards

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)