Step-by-step explanation:
i think it will help you please give me Brainlist bro
anything.
I need at least 20 characters, so: blablabla.
;)
Answer:

Step-by-step explanation:
Simplify the expression

Calculate the product of the coefficients:
2*5*7=70
Compute the product of the variables. Since they are all the same letter, sum their exponents:

Combine the results:

Answer:
20x30xH=7000
11.6666 , depends on how much you need to round it. if 2 sig figs, round it to 12.