The answer for the first equation would be A) 4/81.
1. Use distributive property
2. Simplify 2 to the 2nd power to 4
3. Simplify 9 to the 2nd power to 81 (4/81)
The answer to the 2nd problem would be C) 3/8.
1. 3/10 * 5/4
2. 3 * 5 over 10 * 4
3. 15 over 10 * 4
4. 15/40
5. 3/8.