Using Properties of Real Numbers

Use the properties of real numbers to rewrite and simplify each expression. State which properties apply.

1. ⓐ $3 \cdot 6 + 3 \cdot 4$
2. ⓑ $\left(5 + 8\right) + \left(−8\right)$
3. ⓒ $6 - \left(15 + 9\right)$
4. ⓓ $\frac{4}{7} \cdot \left(\frac{2}{3} \cdot \frac{7}{4}\right)$
5. ⓔ $100 \cdot \left[0.75 + \left(−2.38\right)\right]$