Answer:
Amount Saved = $8.4 (answer). In other words, a 30% discount for a item with original price of $28 is equal to $8.4 (Amount Saved).
1. igneous
2. rock cycle
3. sedimentary, sediment
4. cement
5. metamorphic
(D)The development of stone tools, because the neolithic age has to do with the development of human tools.
