Q.13 is no solution since the y intercept of the 2 equation differ but gradient is the same therefore if you were to draw a graph there wont be any intersection between the equations
I can only use math to explain it. What is 100%? 100% = percent means per 100. so 120% = 120/100 = 1.2 120% of a whole number. For example 120% * 10 = = 12 is it greater than 10.