Answer:
y=-1/5x-9/5
Step-by-step explanation:
y=-5x-9
x=-5y-9
-5y=x+9
y=-1/5x+9/-5
y=-1/5x-9/5
180×80 would give u 14400
The string would have to be 4 feet long to have a frequency of 400cps because each foot=100cps
To find the markup, substract the price at which the car was bought from the price at which the car was sold:

To find the markup as a percentage from the original price, set 20,480 to be equal to 100%. If <em>x%</em> represents 6328, then:

To the nearest tenth, 30.898... = 30.9.
Therefore, the markup is equal to 30.9%.