30 Points!

Complete the following proof. Given: AE is tangent to circle R at point A and to circle S at point E Proven: ∠R = ∠S

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?