1. Mark practices the piano for 2/3 of an hour for 6 hours every week. How many hours does he practice each week?

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)

Factor the polynomial by its greatest common monomial factor.

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test