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Which expression is equivalent to 7(r+4)7(r + 4)?\newlineChoices:\newline(A)11r11r\newline(B)28r28r\newline(C)7r+287r + 28\newline(D)28r+728r + 7

Full solution

Q. Which expression is equivalent to 7(r+4)7(r + 4)?\newlineChoices:\newline(A)11r11r\newline(B)28r28r\newline(C)7r+287r + 28\newline(D)28r+728r + 7
  1. Distribute 77: Distribute the 77 to both terms inside the parentheses.7(r+4)=7×r+7×47(r + 4) = 7 \times r + 7 \times 4
  2. Multiply terms: Multiply 77 by rr and 77 by 44.\newline7×r=7r7 \times r = 7r\newline7×4=287 \times 4 = 28\newlineSo, 7(r+4)=7r+287(r + 4) = 7r + 28

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