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Christalise
216! 56 in 7 min, 8 in 1 min, 216 in 27 min! Hope this helps! :3
You can find this by doing fractions to find the value of X (how many photos scanned in 27 minutes).

56 photos / 7 minutes = X photos / 27 minutes

Begin by cross multiplying.

56 * 27 = 7(X)
1512 = 7(X)

Divide by 7 on both sides to find X.

216 = X