Does anyone know what the answers are to all of

Multiply. −2x(6 x 4 −7 x 2 +x−5) express the answer in standard form. enter your answer in the box.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10