Determine the volume of the rectangular prism side lengths r - 1 1/2 m, 1/2 m, and 7/8 m

if u can show ur work pls !

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

(hurry! ) which expression is equivalent to the following complex fraction?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?