Respuesta :

anniele664

Answer:

c is 93

Step-by-step explanation:

work backwards to get c

100 + 13= 113

113-20= 93

so your answer is 93

cade1021
20-13 is 7 so c + 7 = 100. 100-7 is 93, so therefore c = 93! Hope this helps.

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