not surprised at $3.38 per pound derek buys a sack of peanuts for $15.82 which measurement is a reasonable estimate of the weight of the peanuts that are in the sack

A reasonable estimate of the weight of the peanuts in the sack would be around 4.7 pounds. This estimate was calculated by dividing the total cost of $15.82 by the cost per pound of $3.38.

you sure

Let's recalculate to double-check:

$15.82 / $3.38 per pound = 4.68 pounds

So, a more accurate estimate of the weight of the peanuts in the sack would be around 4.68 pounds.

round it up

Rounding up, a reasonable estimate of the weight of the peanuts in the sack would be approximately 4.7 pounds.

no decimal

In that case, rounding up to the nearest whole number, a reasonable estimate of the weight of the peanuts in the sack would be approximately 5 pounds.