Answer: 2x - $1000
<u>Step-by-step explanation:</u>
Initial investment: x
First Month: x - $500 <em>because she lost $500</em>
Second Month: 2(x - $500) = 2x - $1000 <em>because she double her money from the end of the first month.</em>
Answer:

Step-by-step explanation:
The given function is

To find the inverse of this function, we interchange x and y.

we now solve for y.

Take the sine inverse of both sides to obtain;

Hence the inverse of the given function is;

where 
Answer:
a = 6
Step-by-step explanation:
7a-17 = 4a +1 ; Subtract 4a from both sides
3a - 17 = 1 ; Add 17 to both sides
3a = 18 ; Divide both sides by 3
a = 6
4 (i literally had to think about this cause i thought it was too easy )