If a ferris wheel diameter is 250 ft. find it's cirumference. give an exact answer and an approximation using 3.14 for pi how do i come up with this answer i keep trying but cant figure it out

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?

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