Respuesta :

Step 1. Change the decimal 0.15 to a fraction , 15/100

Step 2. Simplify 3/20

Step 3. 3/20 • (21b - 56)

Step 4. Pull out like factors

Answer: 21 • (3b - 8)
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20
0.15 x 21b - 0.15 x 56

Answer: 3.15b - 8.4

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