-8+4x=-20x-25+7x
4x+20x-7x=-25+8
17x=-17 /17
x=-1
Store one since the 15% is take off 90 dollars which makes it 510
Greatest common factor is 7
Answer:
40%
Step-by-step explanation:


0.40 = 40%
Keeping in mind that the area of a circle is πr².
the actual area will just be the area of the rectangular backyard plus the pool, namely (10*20) + (π15²), which gives us an actual area of
200 + 225π.
now, we know the model and actual are on a 1:20 ratio.