Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
we know that
The old account balance plus the transaction amount is equal to the new account balance
The transaction amount can be a positive number (example a deposit) or a negative number (example a withdrawal)
Part 1) Find the value of A

solve for A
subtract 432 both sides

Part 2) Find the value of B

solve for B

Rewrite

Part 3) Find the value of C

solve for C
subtract 52 both sides


Answer:
2 percent
Step-by-step explanation:
We can use two separate fractions, one representing the amount of physics majors expected and the amount of seniors expected in physics majors by the university.

Now cross multiply.

x will be removed.

Simplifying this fraction will get you
, which in percentage form, will be 2 percent.
Answer:
3
Step-by-step explanation:
The average rate of change is
f(x2) - f(x1)
-----------------
x2-x1
We want to find the change from 1 to 3
f(3) = 8
f(1) = 2
f(3) - f(1) 8-2 6
----------------- = ------------ = ---- = 3
3-1 2 2
Answer: The answer to your question is 13.636. I hope this helps you :D