Respuesta :
Assuming that what you want me to solve is how much she paid for "extra use", the answer is she paid 20 times for the extra charge
47 - 32 = 15
20x .75 = 15
32 is the initial cost
32+.75x=bill
32+.75x=47 .75x=15 x= 20
Vera was 20 minutes over her allowed minutes