Idont understand how to find the percentage and the fraction.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?