A pond covers an area of 4069.44 yards squared. what is the diameter of the pond

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2