Answer:
Step-by-step explanation:
20%
50 = x^2
To isolate x you need to do the opposite of an exponent, which would be square root.
= x
That is the exact form, in other words your answer, if teacher is looking for a decimal, it would be
7.07 = x
Just a moment while I review this
-8-5b+7+5b
add +5b to -5b to get 0.
-8+7 = -1
Answer is -1.