Mashaal Masha
A teacher is creating an assignment worth 70 points. The assignment will consist of questions worth 1 point and questions worth 3 points. Which equation represents this situation, where $x$ represents the number of 1-point questions and $y$ represents the number of 3-point questions?
Difficulty: Easy
A: 

$4xy=70$

B: 

$4(x+y)=70$

C: 

\(3x+y=70\)

D: 

$x+3y=70$

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