Algebra Practice Test Results

Question 1
78% answer correctly
Solve this equation for a: \\(a = \\frac{b^6}{b^2}\\)
\\(b^4\\)
-4b
\\(b^{\\frac{2}{6}}\\)
\\(b^{-4}\\)
Question 2
73% answer correctly
What`s the greatest common factor of 64 and 56?
8
4
16
120
Question 3
53% answer correctly
Simplify \\(\\sqrt{180}\\)
\\(6\\sqrt{180}\\)
\\(6\\sqrt{5}\\)
\\(5\\sqrt{6}\\)
\\(5\\sqrt{180}\\)