Rapheal paid $486 for a camera on a 25% off sale what was the original price?

You can set up an equation to solve.

Let x be original price.
25% of x = amount you saved.

Now the original amount - amount you saved = $486.

So x - 0.25x = 486
0.75x = 486
x = 648
Original price was $648

The distance from point a to point c across the coordinate plane is aproxamatly 8.94 rounded to the nearest hundredth. you use a^2 + b^2 =c^2