Can someone help me here pls?

The correct answer is 10.7

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction