Which decimal is equivalent to?

3.12
3.1205
-3.18
-3.125

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place

Darragh has a golden eagle coin in his collection with a mass of 13.551\,\text{g}13.551g. an uncirculated golden eagle coin has a mass of 13.714\,\text{g}13.714g.

The scale factor of the dimensions of two similar wood floors is 5 : 4. it costs $384 to refinish the smaller wood floor. at that rate, how much would it cost to refinish the larger wood floor?