Answer:
3x + 30
Step-by-step explanation:

3x + 30 would be an equivalent expression.
Hope this helps.
Oof this one is hard I think it’s 20 mm but I’m not sure
Answer:
the answer is yes
Step-by-step explanation:
Tom has 39 silver dollars. You can do this on your head. Jimmy has 32, and Tom 39.
Answer:
4
Step-by-step explanation:
The one that weighs the less is 80
<u><em>Pls give brainlest.</em></u>