The answer is 2. You can find it by multiplying 20 and 21 giving you 420 and since 420 is half of 840 then all you would have to do is multiply 420 by 2 meaning the height is 2 since if you multiplied all in one it would be 20 x 21 x 2=840
The answer would be 100x38! You just have to add what’s in the parentheses!
Hope this helps please give brainliest❤️
Least common multiple (LCM) of 527 is 285634