Step-by-step explanation:
Hey there!
f(x) = 7/x
<em>~ Simply keep the "7" in the place where "x" is there.</em>

Therefore, X= 1.
<em><u>Hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
400%
Step-by-step explanation:
Original wieght = 12
New weight = 60
Change = 60- 12= 48
Change percent = change / original x 100 = 48 / 12 x 100 = 400 %
I hope its right!!!! :)
Answer:
Step-BYU-step explanation
4z - (-3z) = 4z + 3z = 7z