Respuesta :

gahamilton
The answer would be (f. 66) because you are subtracting four from both the sides

Hope this helped :)
darcygott
Actually, the answer is 54 in^2 because rectangle s and t are proportional to each other which means 6/x=10/15. In this case x=9. Since area is A=bh, A=6x9. Therefore, your answer is 54.