Please answer ASAP I will send more points to whoever answers correctly! Due in 10 mins!

The radius of a sphere is 3 inches. which represents the volume of the sphere?

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.

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers