It looks ok to me, but I am not fluent in Spanish. I did pass it with an A in high school, but I could be wrong.
The correct sentence is: En el español hay cinco vocales.
Answer:
If you want to increase the current then you need to increase the number of cells...
Answer
i’m not sure if there is a specific answer but for the first one i would put, “con alguien”
and i’m not sure what word u should put but i hope this helps and have a wonderful day :)