What is the regular ending for an -ar verb in the "ustedes" form?

Hola,ayuda por ¿cuál es la definición de solicitud de apoyo,para que sirve y en que cosas se puede usar,elementos y características como se hacen? la necesito urgente!

Que techs es el viernes is hoy es martes, el 29 de diciembre

Instructions: create a public service announcement in spanish on severe weather procedures to encourage the community to be prepared. use the graphic organizer to organize your ideas and to write the vocabulary that you need to create your public service announcement. refer to pages 1, 2 and 3 of the lesson area for terms and ideas to you fill out the organizer and, ultimately, create your psa. this announcement can be a flyer, a radio message, or a tv message. you can select the severe weather event that is approaching or imminent. describe the severe weather event and tell the community how to protect themselves before, during, or after the weather event. include at least 10 ideas related to the severe weather event and the procedures to get prepared