Can someone help me please ASAP

Which features are created on the exterior of a volcano when it erupts? check all that apply. vent crater hot spot lava flow boundary

The fact that some sports teams have mascots that are associated with american indian stereotypes is an example of: a) the history of hate crimes b) the pain caused by racial equality c) the costs associated with hate crimes d) the legacy of racism

How many soultions does the system of equations have y= -6x + 330x + 5y = 15a. one b. twoc. infinity manyd. none