4a-3(a-2)=2(3a-2) how do you solve for this? ?

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

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line