If you have supplementary angles and one of the angles is 123°, what is the other angle?

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

Kilgore trout creates a new scale to diagnose depression. however, his scale only assesses one symptom of depression while ignoring others. which of the following is his new scale most likely lacking? a) test-retest reliability b) discriminant validity c) criterion validity d) alternate-forms reliability e) content validity f) none of the above

Can someone answer and tell me how to do this (will mark brainliest)