How do you place 4+2 on a number line

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.