What equation describes a circle with a radius of 4, centered at the point (-1,-1)

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?