Matthew and courtney have 72 coins altogether. courtney has 8 more than 3 times as many coins as matthew. how many coins do they each have?

Which table shows a proportional relationship between miles traveled and gas used?

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.

What is the perimeter of a rectangle if the length is 5 and the width is x?