Hree different stocks were ordered. the purchase prices were 8 ⅜ dollars, 12 ⅛ dollars and 15 ⅜ dollars. how much was paid for all three stocks?

Can someone explain the elimination method to me for this problem?

1. what is the phythaforean theorem? 2.what do we use it for? 1.what is the distance formula ? 2.what do we use it for?

The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7