X^-2=4. You got it correct:)
The formula for that is V=

but the answer is 4,940cm³ so C.
Answer:
Step-by-step explanation:
90 by 20%
10%=9
20%=18
90-18=62
Hope u understand
Answer:
Positive exponent
Step-by-step explanation:
Like x root 1 , 2 , 3 etc
If it said negative exponent then x root -1, -2 etc etc.