What is the name of the quadrilateral that always has 4 right angles and 4 sides of equal length?

What’s the answer ? use the picture to see the problem

Write the equation in logarithmic form 8^x=64

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)