p + 0.2p


=

1p + 0.2p

=
1.2p
Part D
Using the simplified expression you wrote in part C, explain what it means to have 20% more of a given quantity.

To have 20% more of a given quantity means to increase the original quantity by 20%. In terms of the simplified expression 1.2p, it means that the new quantity is 1.2 times the original quantity p.

Having 20% more of a given quantity means adding an additional 20% of the original quantity to itself. In other words, it means increasing the original quantity by 20%.