Answer:
-5.25 + 3.5 = -1.75
Step-by-step explanation:
This can technically be done two ways. The first is the most simplified, and the second less simplified, and less likely to get the best grade.
1.So long as you don't have to order it chronologically, you should be good with this one: 
2.This one IS chronological (she got a correct answer, then a wrong answer), but you can NOT simplify it, because it asks for an addition equation: 
The best option is probably #1
Answer:
Step-by-step explanation:
those are weird numbers but where are the answer options
Found this. Hope it helps.
https://www.algebra.com/algebra/homework/word/coins/Word_Problems_With_Coins.faq.question.1059726.html
Answer:
volume of the cylinder divided by 2 is the volume of the cone
Step-by-step explanation:
Answer:
9 raised to the power -10
Step-by-step explanation:
If the exponents are being divided you subtract them