Circumference Math! A donut has a radius of 1.5 inches. What is the approximate circumference of the donut? Please explain, and I will give brainlist and 5 stars.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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)

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with