Use the rule of 3 simple
1680 beats ------- 60 min.
x beats -------------- 1 min.
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x = (1680*1)/60 = 1680/60 = 168/6 = 28 beats per minute
hope helped
False because they don't have the same length and shape you know they may be triangle but the their length are different.
Answer:
He can add through calculater or by doing addition in his mind
The square root of 52
the third answer

so... you tells us, which filling rate is the bigger and thus faster one?