A rectangular prism has a length of 5 cm, a width of 2 1/2cm and a height of 1 1/2 cm Which expressions can be used to find the volume of the prism?



Select each correct answer.



5∙2 1/2∙1 1/2
12 1/2∙1 1/2
1 1/2(5+2 1/2)
1/2(12 1/2∙1 1/2)