Idon’t know nothing about the kind of machines used to make roads.
which has an error in usage? if the sentence has no errors, choose no mistakes.

The error in the sentence is using double negatives.

Explanation:

Yes, there is a mistake in this sentence. The error is using double negatives in the same sentence. Double negative is making use of two negative words in a phrase like “I didn’t do nothing”, but in this double usage of negatives words they are canceling each other as if it is affirming that “I did something”. The correct construction for the sentence above should be “I don’t know about the kind of machines used to make roads.” or “I know nothing about the kind of machines used to make roads.”

glitch or non-saved account.

explanation:

i'm not personally a mobile user but one reason could be that it is either a glitch where it doesn't automatically log you in, or you have it so cant save your log-in information. i suggest you use the mobile app instead of using your web browser!

idk

explanation: