Answer:
Part a)
The quantity of fruit pies sold was 
The quantity of juice bottles sold was 
Part b) Mr. Kelly’s class earned more money
part c) 
Step-by-step explanation:
Part a)
Let
x-----> quantity of fruit pies sold
y----> quantity of juice bottles sold
we know that

-----> equation A
----> equation B
substitute equation A in equation B
bottles of fruit juice
Find the value of x
------>
fruit pies
Part b) Which class earned more money?
Mr. Sanchez’s class

Mr. Kelly’s class

therefore
Mr. Kelly’s class earned more money
Part c) How much more money did that class earn?
Find the difference

I'm not sure if an equation is needed. Since you put the marble back into the bag the odds are still 50/50 that you will draw either color.
If you would have left it out then it would be dependent because the ratio would change.
Answer: I think the answer is t = -4 please let me know if this answer is wrong !
Answer:
Step-by-step explanation:
7 because if its between 7.1 and 7.4 itll round to 7 and if it between 7.5 and 7.9 it would be 8. therefore the answer is 7