Answer:
390 pens in total
Step-by-step explanation:
Each box has 6 black and 4 black
so the total amount of pens per box should be 10 because 6+4=10
Since we have to use distributive property you can write the equation (6+4)*39 because you need to figure out the total amount of pens in all the boxes.
6+4 is 10
and 10 * 39 is 390
therefore the answer is 390 pens in total
Here you go :)
Terms (Variables) = x , d . Their corresponding coefficients = n^2 , 1/2 . Constant = 6
6 + n x n + 1/2d
6 + n^2 x + 1/2d
Sister Is a PIG
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