Answer:
The area of the rectangle plus the area of the triangle under the line.
Step-by-step explanation:
Please excuse my dear aunt sally ( parentheses, exponents, multiplication, division, addition, and subtraction )
30+0.10x
340/0.10=34
34+30=64
64 dollars, I think
You can use elimination to solve systems of equations with 3 equations. I know how to solve systems of equatons with 3 equations, but I use a different process, I don't know how to use the elimination method.