Write an expression that shows how to use the halving and doubling strategy to find 28x50

Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or the same as the original value. 1. a 25% decrease followed by a 50% increase 2. a 20% decrease followed by a 25% increase

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

What are the first 4 terms in the multiplication pattern given by the formula 2×4n