Alex wrote checks on Tuesday for $40 and $30. He also made a deposit in his checking account of $185. Find the overall change in the amount in his checking account. $ was (select A- Added to or B- deduced from) Alex's account.

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)