Respuesta :

For the 1st one:

x/72=50/100     x=36

2nd one:

x/108=125/100
100x=13500

x=135
50% of 72 means that you will multiply them
50 /100 × 72 = 36
By the same way to get 125% of 108 you will multiply them
125/100 ×108 = 135