Answer:
7
Step-by-step explanation:
form a proportion
12/2=42/x
cross multiply
12x=84
x=7
Im sorry im trying to get some points ): i hope u find ur answer!
I got 6 and -7 when I did this problem, maybe you made a mistake or maybe I did. But you are on the right track
The percent error is 34.28 %.
Hope this helps! Be safe out there.
