Description of a turn for those who have never done math / for a child

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

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.

Which statement is true about the discontinuities of the function f(x) = x-5/ 3x^2-17x-28