What is the value of (-4) (68) (1/4

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Measures of the angle of r, 31 s (x+4) t (3x+9)

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?