I am not so sure but I think the answer is 12
<u>Answer</u>:
21 is 30% of 70
<u>Explanation</u>:
We know that 100% is the original number.
Equation:
(21/30)*100
21/3 * 10
7 * 10
70 ....this is the answer, original number.
16 - (-15) = 16 + 15 = 31...difference of 31 degrees
=3(3z)2-3
=3(9z2)-3
=27z^2-3
=3(9z^2-1)
=3(3z+1)(3z-1)
1, 0 , 8, and 2 would all lie on the y-axis
