If y varies directly as x, and y = 7 when x=3 find y when x=7

answer; i believe that one of the correct answers is preventing human development;

7.03-1.70=5.33 and 6.80+5.09=11.89 and 5.5-3.01=2.49

i believe that if you say you can, you cant and if you say you can't your right. i believe i can do anything i set my mind to. i've applied this with my everyday life. it me get motivated to do stuff.for example, i apply this to do school. if i believe i can finish a whole class in a couple of week's i will be motivated to do the class until i finish it, and if i believe i can't, i will get distracted and do other stuff besides doing my work. it changed me by believing i can accomplish anything i set my mind to.