MATH AND SCIENCE :
If 7 giant solar power plants generate 1.3 gigawatts (GW) of energy to power 900,000
homes, how many gigawatts can 21 giant solar plants generate?

(IF YOU PUT RANDOM LETTERS I WILL REPORT PLUS PLEASE DON'T ANSWER THIS AS IT WAS A COLLEGE QUESTION ANSWER LIKE A 5TH GRADE MATH QUESTION WHICH IT IS.)