if an atom has 12 positively charged protons and 12 negatively charged electrons, what is it's total charge?

Which expression is rational? 6. , square root two, square root 14, square root 49

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

Can you me find the slope! (30 points)