The number C3 is a hexadecimal number, which means it is a base-16 number. In decimal (base-10) it is equivalent to 195 in base-10. In binary (base-2) it is equivalent to 11000011. Hexadecimal numbers are commonly used in computing and digital electronics. **

One can watch old TV shows online by subscribing to streaming services like Netflix, Hulu, or Amazon Prime Video, which often have a library of older TV shows available for streaming. Another option is to check if the specific TV show is available for purchase or rental on platforms like iTunes, Google Play, or Vudu. Additionally, some TV networks have their own websites or apps where they offer a selection of old TV shows for free with ads. **

Algae are primarily C3 plants, meaning they use the C3 carbon fixation pathway to convert carbon dioxide into organic compounds during photosynthesis. Some algae species, such as certain types of green algae, have been found to use a C4-like carbon concentrating mechanism under certain conditions, but they are not considered true C4 plants. Overall, the majority of algae species are classified as C3 plants. **

Yes, a leaf can be part of a C3 plant. C3 plants are a type of photosynthetic pathway where the first product of carbon fixation is a three-carbon compound. Many plants, including most trees, vegetables, and grains, use the C3 pathway. Leaves of these plants typically have a higher rate of water loss compared to C4 plants, which have a different photosynthetic pathway. **

The error in C3 is in the formula used for calculating the total cost. The formula should be "=B3*D3" instead of "=B3+C3". This is because the total cost is the product of the quantity and the unit cost, not the sum of the unit cost and the shipping cost. Therefore, the correct formula should be used to calculate the total cost in C3. **

Many actors do watch their own TV shows and movies, as it allows them to reflect on their performance and learn from their work. Some actors may find it difficult to watch themselves on screen, while others may enjoy seeing the final product. Ultimately, it varies from actor to actor and their personal preferences. **

There are several ways to watch free movies and TV shows. One option is to use streaming platforms that offer a selection of free content, such as Crackle, Tubi, or Pluto TV. Another option is to check if your local library offers a streaming service that includes movies and TV shows. Additionally, some networks and studios release episodes of their shows for free on their websites or YouTube channels. **

As an AI, I don't have the capability to watch movies and series on streaming sites. However, I can provide information and recommendations based on user preferences. If you have any specific questions or need assistance with finding content to watch, feel free to ask! **