How do you undo an exponent of 2?

equation: y^2=100-x^2

Drag each sequence of transformations to the correct location on the table. classify the sequences of transformations based on whether or not they prove the congruency of the shapes by mapping shape i onto shape ii. plz i'll rate u 5 stars need this done for a mastery test

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)