He paid $643.5 for it originally
585 x .1 = 58.5
585+58.5= 643.5
hope this helps
Answer:
For x = 10:

For y = - 3:

Step-by-step Explanation:
Before we start let's recall the formula for the linear equations.

So first let's solve for x=10:

Move 10 to the other side.

As there is no y given we will simply write 0y.

Now let's solve for y=-3:

Move -3 to the other side.

As there is no x given we will simply write 0x.

If this answer helped you, give this answer a heart, rate it and if you could then please mark it brainliest. Thanks!
Answer: D. all real numbers less than or equal to –3
Answer:

Step-by-step explanation:
Flip the equation.

Add -9 to both sides


Divide both sides by 7/8

hope this helps
Answer:
hiiii
Step-by-step explanation:
welcome back