If the scale is 2cm: 8km and it shows the park is 16 cm away how far is that in km?

64 km

Step-by-step explanation:

The scale for a map determines the ratio between the distance on the map and the distance in real like.

Because we know the park is 16 cm away then we have

.

Notice that 2cm becomes 16 cm by multiplying by 8. Do the same for the denominator and we'll have the distance in kilometers.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225