6. You have $50.00. You buy a CD for $15.50. You sell it to your friend for $12.00. He doesn't like it, so you buy it back for $10.00. There is a scratch on it, so you return it to the store and get
your money back. How much did you lose or make?

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.