Answer:

Step-by-step explanation:
Let's start by finding Sandra's salary this year.
We are given that she saved $3,360 or 8% of her total salary this year.
Let's represent her total salary this year as "x" and set up an equation:

Note that any percentage is equivalent to that number over 100.

Multiply 100 to both sides:

Divide both sides by 8

The question states "this year her salary was $2000 more than in the previous year".
This means that her salary in the previous year is equivalent to:

Answer:
since they are alternate exteriors, we put a equal sign
2x+78=5x+15
next we subtract 78 on both sides
2x+78-78=5x+15-78
2x=5x-63
then we subtract 5x on both sides
2x-5x=5x-5x-63
-3x=-63
after that we divide -3 on both sides
-3x/-3=-63/-3
and the answer is
x=21
Step-by-step explanation:
The answer is 254. You want 299 with 15% off