Respuesta :

Answer: See below

Step-by-step explanation:

a. 3(4)= 12

b. 4+11+(-4)

   =15+(-4)

Answer=11

c. 3.2(2)= 6.4

d. I (-2)+(-2)+(-2) I=  6

e. I 2(-7.5) I = 15

f. [tex]10\frac{1}{5}[/tex](-5)= -51

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