A theme park charges $45 for each adult ticket and $30 for each child ticket. A family purchased 10 tickets for $345. Which system of equations could be used to find a, the number of adult tickets, and c, the number of children tickets that were purchased? Question 2 options:

{a+c=34545a+30c=10

{a+c=34530a+45c=10

{a+c=1030a+45c=345

{a+c=1045a+30c=345

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.