Final answer:
The expressions 2t x 4 x 5u and 8f x g x 3h can be simplified as 40tu and 24fgh, respectively.
Step-by-step explanation:
The expressions 2t x 4 x 5u and 8f x g x 3h can be simplified as follows:
= 2 x 4 x 5 x t x u
= 40tu
= 8 x 3 x f x g x h
= 24fgh