Answer:

Step-by-step explanation:
1. Expand by distributing sum groups.
2. Expand by distributing terms.

3.Expand by distributing terms.

4. Remove parentheses.

5. Collect like terms.

6. Simplify.

Thus. the answer is,

3. rational number
4.3x/5
5.12x+6
The cost with just the 10$ off would be 39.98
Answer:
28.56 but rounded to tenth equals 30
Step-by-step explanation:
84 x 0.34 = 28.56 rounded to 30
hope i helped
I would say it’s the first one