This isn’t an equation— equations require an equal sign and a variable of some sort on the other side of that said equal sign. Sorry.
<span>Él es un compañero de clase is the right answer. The 1st sentence is ella but </span>compañero should be compañera. In the second one ella should not have an accent mark and in the last one el doesn't match with una.
Answer:
The biggest city in north america is Mexico city
Explanation:
TRUST ME I KNOW IT SURE