Answer:
[1. 10.5] [2. 8.4] [3. 7.7]
Step-by-step explanation:
9.8 divided by 7 will give you the unit rate which each unit adds up by.
39.99 + 0.45a = 44.99 + 0.40a you're welcome (:
Subtract 2/3 from both sides.
1800
cube have 6 faces
6*300=1800