What is the value of x?

6x − 2(x + 4) = 12

(and there are no answer choices)

Which statement justifies why angle ebc measures 90?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Which is the focus of a parabola with equation y2=4x