Respuesta :

maempress

Step-by-step explanation:

open the brackets by multiplying 4 and 28 =112

18+112= 130

Answer:

Use the distributive property and expand 28, then distribute the 4 to 20 and the 4 to 8. Then you have 18 + 80 + 32. Use commutative property to reverse the order of 32 and 80 so that 18 and 32 are friendly numbers to add.

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