What value of n makes the equation true? Show your work.

Acircle has a circumference of 7.850 units. what is its radius?

Which statement is true about the local minimum of the graphed function? over the interval[-4,-2], the local minimum is 0. over the interval [-2,-1] , the local minimum is 25. over the interval [-1,4], the local minimum is 0. over the interval [4,7], the local minimum is -7

May someone me with these science questions