Write a question? (keep it simple and clear.) What is a FRACTAL

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.

How do i do this problem i don't know what to do can u

Greg saved $8,000 prior to starting college.each semester he must pay$2,500 in tuition and fees.he knos he will eventually be in debt.create and equation