Answer:
18
Step-by-step explanation:
Answer:
All solid substances require the same temperature and heat to melt them.
Step-by-step explanation:
Depending on the substance, the required heat to melt it changes, and is not the same for every solid.
Your answer would be 252 Hope this helps
Answer:
its B, 90
Step-by-step explanation:
thats a right triangle so the r angle is 90
Answer:
5
Step-by-step explanation: